20942397

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 15748803

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 97, 149, 161, 207, 291, 447, 483, 679, 873, 1043, 1341, 1449, 2037, 2231, 3129, 3427, 6111, 6693, 9387, 10281, 14453, 15617, 20079, 23989, 30843, 43359, 46851, 71967, 101171, 130077, 140553, 215901, 303513, 332419, 910539, 997257, 2326933, 2991771, 6980799, 20942397]

約数ペア:

[(1, 20942397), (3, 6980799), (7, 2991771), (9, 2326933), (21, 997257), (23, 910539), (63, 332419), (69, 303513), (97, 215901), (149, 140553), (161, 130077), (207, 101171), (291, 71967), (447, 46851), (483, 43359), (679, 30843), (873, 23989), (1043, 20079), (1341, 15617), (1449, 14453), (2037, 10281), (2231, 9387), (3129, 6693), (3427, 6111)]