21559604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:129

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 26703436

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 37, 38, 41, 44, 68, 74, 76, 82, 148, 164, 187, 209, 323, 374, 407, 418, 451, 629, 646, 697, 703, 748, 779, 814, 836, 902, 1258, 1292, 1394, 1406, 1517, 1558, 1628, 1804, 2516, 2788, 2812, 3034, 3116, 3553, 6068, 6919, 7106, 7667, 7733, 8569, 11951, 13243, 13838, 14212, 15334, 15466, 16687, 17138, 23902, 25789, 26486, 27676, 28823, 30668, 30932, 33374, 34276, 47804, 51578, 52972, 57646, 66748, 103156, 115292, 131461, 145673, 262922, 283679, 291346, 317053, 489991, 525844, 567358, 582692, 634106, 979982, 1134716, 1268212, 1959964, 5389901, 10779802, 21559604]

約数ペア:

[(1, 21559604), (2, 10779802), (4, 5389901), (11, 1959964), (17, 1268212), (19, 1134716), (22, 979982), (34, 634106), (37, 582692), (38, 567358), (41, 525844), (44, 489991), (68, 317053), (74, 291346), (76, 283679), (82, 262922), (148, 145673), (164, 131461), (187, 115292), (209, 103156), (323, 66748), (374, 57646), (407, 52972), (418, 51578), (451, 47804), (629, 34276), (646, 33374), (697, 30932), (703, 30668), (748, 28823), (779, 27676), (814, 26486), (836, 25789), (902, 23902), (1258, 17138), (1292, 16687), (1394, 15466), (1406, 15334), (1517, 14212), (1558, 13838), (1628, 13243), (1804, 11951), (2516, 8569), (2788, 7733), (2812, 7667), (3034, 7106), (3116, 6919), (3553, 6068)]