21818004

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:489

約数の個数: 96

約数和(自身を含む): 61246080

約数和(自身を除く): 39428076

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 19, 26, 34, 38, 39, 51, 52, 57, 68, 76, 78, 102, 114, 156, 204, 221, 228, 247, 323, 433, 442, 494, 646, 663, 741, 866, 884, 969, 988, 1292, 1299, 1326, 1482, 1732, 1938, 2598, 2652, 2964, 3876, 4199, 5196, 5629, 7361, 8227, 8398, 11258, 12597, 14722, 16454, 16796, 16887, 22083, 22516, 24681, 25194, 29444, 32908, 33774, 44166, 49362, 50388, 67548, 88332, 95693, 98724, 106951, 139859, 191386, 213902, 279718, 287079, 320853, 382772, 419577, 427804, 559436, 574158, 641706, 839154, 1148316, 1283412, 1678308, 1818167, 3636334, 5454501, 7272668, 10909002, 21818004]

約数ペア:

[(1, 21818004), (2, 10909002), (3, 7272668), (4, 5454501), (6, 3636334), (12, 1818167), (13, 1678308), (17, 1283412), (19, 1148316), (26, 839154), (34, 641706), (38, 574158), (39, 559436), (51, 427804), (52, 419577), (57, 382772), (68, 320853), (76, 287079), (78, 279718), (102, 213902), (114, 191386), (156, 139859), (204, 106951), (221, 98724), (228, 95693), (247, 88332), (323, 67548), (433, 50388), (442, 49362), (494, 44166), (646, 33774), (663, 32908), (741, 29444), (866, 25194), (884, 24681), (969, 22516), (988, 22083), (1292, 16887), (1299, 16796), (1326, 16454), (1482, 14722), (1732, 12597), (1938, 11258), (2598, 8398), (2652, 8227), (2964, 7361), (3876, 5629), (4199, 5196)]