21317954210

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{4481}}^1$

素因数の和:4601

約数の個数: 128

約数和(自身を含む): 47760192000

約数和(自身を除く): 26442237790

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 73, 95, 98, 133, 146, 190, 245, 266, 343, 365, 490, 511, 665, 686, 730, 931, 1022, 1330, 1387, 1715, 1862, 2555, 2774, 3430, 3577, 4481, 4655, 5110, 6517, 6935, 7154, 8962, 9310, 9709, 13034, 13870, 17885, 19418, 22405, 25039, 31367, 32585, 35770, 44810, 48545, 50078, 62734, 65170, 67963, 85139, 97090, 125195, 135926, 156835, 170278, 219569, 250390, 313670, 327113, 339815, 425695, 439138, 475741, 595973, 654226, 679630, 851390, 951482, 1097845, 1191946, 1536983, 1635565, 2195690, 2289791, 2378705, 2979865, 3073966, 3271130, 4171811, 4579582, 4757410, 5959730, 6215147, 7684915, 8343622, 11448955, 12430294, 15369830, 16028537, 20859055, 22897910, 29202677, 31075735, 32057074, 41718110, 43506029, 58405354, 62151470, 80142685, 87012058, 112199759, 146013385, 160285370, 217530145, 224399518, 292026770, 304542203, 435060290, 560998795, 609084406, 1121997590, 1522711015, 2131795421, 3045422030, 4263590842, 10658977105, 21317954210]

約数ペア:

[(1, 21317954210), (2, 10658977105), (5, 4263590842), (7, 3045422030), (10, 2131795421), (14, 1522711015), (19, 1121997590), (35, 609084406), (38, 560998795), (49, 435060290), (70, 304542203), (73, 292026770), (95, 224399518), (98, 217530145), (133, 160285370), (146, 146013385), (190, 112199759), (245, 87012058), (266, 80142685), (343, 62151470), (365, 58405354), (490, 43506029), (511, 41718110), (665, 32057074), (686, 31075735), (730, 29202677), (931, 22897910), (1022, 20859055), (1330, 16028537), (1387, 15369830), (1715, 12430294), (1862, 11448955), (2555, 8343622), (2774, 7684915), (3430, 6215147), (3577, 5959730), (4481, 4757410), (4655, 4579582), (5110, 4171811), (6517, 3271130), (6935, 3073966), (7154, 2979865), (8962, 2378705), (9310, 2289791), (9709, 2195690), (13034, 1635565), (13870, 1536983), (17885, 1191946), (19418, 1097845), (22405, 951482), (25039, 851390), (31367, 679630), (32585, 654226), (35770, 595973), (44810, 475741), (48545, 439138), (50078, 425695), (62734, 339815), (65170, 327113), (67963, 313670), (85139, 250390), (97090, 219569), (125195, 170278), (135926, 156835)]