21004830

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{433}}^1$

素因数の和:471

約数の個数: 144

約数和(自身を含む): 69464304

約数和(自身を除く): 48459474

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 42, 45, 49, 55, 63, 66, 70, 77, 90, 98, 99, 105, 110, 126, 147, 154, 165, 198, 210, 231, 245, 294, 315, 330, 385, 433, 441, 462, 490, 495, 539, 630, 693, 735, 770, 866, 882, 990, 1078, 1155, 1299, 1386, 1470, 1617, 2165, 2205, 2310, 2598, 2695, 3031, 3234, 3465, 3897, 4330, 4410, 4763, 4851, 5390, 6062, 6495, 6930, 7794, 8085, 9093, 9526, 9702, 12990, 14289, 15155, 16170, 18186, 19485, 21217, 23815, 24255, 27279, 28578, 30310, 33341, 38970, 42434, 42867, 45465, 47630, 48510, 54558, 63651, 66682, 71445, 85734, 90930, 100023, 106085, 127302, 136395, 142890, 166705, 190953, 200046, 212170, 214335, 233387, 272790, 300069, 318255, 333410, 381906, 428670, 466774, 500115, 600138, 636510, 700161, 954765, 1000230, 1166935, 1400322, 1500345, 1909530, 2100483, 2333870, 3000690, 3500805, 4200966, 7001610, 10502415, 21004830]

約数ペア:

[(1, 21004830), (2, 10502415), (3, 7001610), (5, 4200966), (6, 3500805), (7, 3000690), (9, 2333870), (10, 2100483), (11, 1909530), (14, 1500345), (15, 1400322), (18, 1166935), (21, 1000230), (22, 954765), (30, 700161), (33, 636510), (35, 600138), (42, 500115), (45, 466774), (49, 428670), (55, 381906), (63, 333410), (66, 318255), (70, 300069), (77, 272790), (90, 233387), (98, 214335), (99, 212170), (105, 200046), (110, 190953), (126, 166705), (147, 142890), (154, 136395), (165, 127302), (198, 106085), (210, 100023), (231, 90930), (245, 85734), (294, 71445), (315, 66682), (330, 63651), (385, 54558), (433, 48510), (441, 47630), (462, 45465), (490, 42867), (495, 42434), (539, 38970), (630, 33341), (693, 30310), (735, 28578), (770, 27279), (866, 24255), (882, 23815), (990, 21217), (1078, 19485), (1155, 18186), (1299, 16170), (1386, 15155), (1470, 14289), (1617, 12990), (2165, 9702), (2205, 9526), (2310, 9093), (2598, 8085), (2695, 7794), (3031, 6930), (3234, 6495), (3465, 6062), (3897, 5390), (4330, 4851), (4410, 4763)]