19156779824

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13157129}}^1$

素因数の和:13157157

約数の個数: 40

約数和(自身を含む): 45681555360

約数和(自身を除く): 26524775536

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13157129, 26314258, 52628516, 92099903, 105257032, 171042677, 184199806, 210514064, 342085354, 368399612, 684170708, 736799224, 1197298739, 1368341416, 1473598448, 2394597478, 2736682832, 4789194956, 9578389912, 19156779824]

約数ペア:

[(1, 19156779824), (2, 9578389912), (4, 4789194956), (7, 2736682832), (8, 2394597478), (13, 1473598448), (14, 1368341416), (16, 1197298739), (26, 736799224), (28, 684170708), (52, 368399612), (56, 342085354), (91, 210514064), (104, 184199806), (112, 171042677), (182, 105257032), (208, 92099903), (364, 52628516), (728, 26314258), (1456, 13157129)]