201721266

素因数分解:

$2^1\times 3^4\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:361

約数の個数: 80

約数和(自身を含む): 465874200

約数和(自身を除く): 264152934

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 61, 81, 122, 137, 149, 162, 183, 274, 298, 366, 411, 447, 549, 822, 894, 1098, 1233, 1341, 1647, 2466, 2682, 3294, 3699, 4023, 4941, 7398, 8046, 8357, 9089, 9882, 11097, 12069, 16714, 18178, 20413, 22194, 24138, 25071, 27267, 40826, 50142, 54534, 61239, 75213, 81801, 122478, 150426, 163602, 183717, 225639, 245403, 367434, 451278, 490806, 551151, 676917, 736209, 1102302, 1245193, 1353834, 1472418, 1653453, 2490386, 3306906, 3735579, 7471158, 11206737, 22413474, 33620211, 67240422, 100860633, 201721266]

約数ペア:

[(1, 201721266), (2, 100860633), (3, 67240422), (6, 33620211), (9, 22413474), (18, 11206737), (27, 7471158), (54, 3735579), (61, 3306906), (81, 2490386), (122, 1653453), (137, 1472418), (149, 1353834), (162, 1245193), (183, 1102302), (274, 736209), (298, 676917), (366, 551151), (411, 490806), (447, 451278), (549, 367434), (822, 245403), (894, 225639), (1098, 183717), (1233, 163602), (1341, 150426), (1647, 122478), (2466, 81801), (2682, 75213), (3294, 61239), (3699, 54534), (4023, 50142), (4941, 40826), (7398, 27267), (8046, 25071), (8357, 24138), (9089, 22194), (9882, 20413), (11097, 18178), (12069, 16714)]