21940932

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 57388800

約数和(自身を除く): 35447868

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 169, 186, 338, 349, 372, 403, 507, 676, 698, 806, 1014, 1047, 1209, 1396, 1612, 2028, 2094, 2418, 4188, 4537, 4836, 5239, 9074, 10478, 10819, 13611, 15717, 18148, 20956, 21638, 27222, 31434, 32457, 43276, 54444, 58981, 62868, 64914, 117962, 129828, 140647, 176943, 235924, 281294, 353886, 421941, 562588, 707772, 843882, 1687764, 1828411, 3656822, 5485233, 7313644, 10970466, 21940932]

約数ペア:

[(1, 21940932), (2, 10970466), (3, 7313644), (4, 5485233), (6, 3656822), (12, 1828411), (13, 1687764), (26, 843882), (31, 707772), (39, 562588), (52, 421941), (62, 353886), (78, 281294), (93, 235924), (124, 176943), (156, 140647), (169, 129828), (186, 117962), (338, 64914), (349, 62868), (372, 58981), (403, 54444), (507, 43276), (676, 32457), (698, 31434), (806, 27222), (1014, 21638), (1047, 20956), (1209, 18148), (1396, 15717), (1612, 13611), (2028, 10819), (2094, 10478), (2418, 9074), (4188, 5239), (4537, 4836)]