21206922

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 50295168

約数和(自身を除く): 29088246

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 41, 51, 66, 82, 102, 123, 187, 246, 374, 451, 461, 561, 697, 902, 922, 1122, 1353, 1383, 1394, 2091, 2706, 2766, 4182, 5071, 7667, 7837, 10142, 15213, 15334, 15674, 18901, 23001, 23511, 30426, 37802, 46002, 47022, 56703, 86207, 113406, 172414, 207911, 258621, 321317, 415822, 517242, 623733, 642634, 963951, 1247466, 1927902, 3534487, 7068974, 10603461, 21206922]

約数ペア:

[(1, 21206922), (2, 10603461), (3, 7068974), (6, 3534487), (11, 1927902), (17, 1247466), (22, 963951), (33, 642634), (34, 623733), (41, 517242), (51, 415822), (66, 321317), (82, 258621), (102, 207911), (123, 172414), (187, 113406), (246, 86207), (374, 56703), (451, 47022), (461, 46002), (561, 37802), (697, 30426), (902, 23511), (922, 23001), (1122, 18901), (1353, 15674), (1383, 15334), (1394, 15213), (2091, 10142), (2706, 7837), (2766, 7667), (4182, 5071)]