21651786

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 55036800

約数和(自身を除く): 33385014

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 39, 46, 54, 69, 78, 81, 117, 138, 149, 162, 207, 234, 243, 298, 299, 351, 414, 447, 486, 598, 621, 702, 894, 897, 1053, 1242, 1341, 1794, 1863, 1937, 2106, 2682, 2691, 3159, 3427, 3726, 3874, 4023, 5382, 5589, 5811, 6318, 6854, 8046, 8073, 10281, 11178, 11622, 12069, 16146, 17433, 20562, 24138, 24219, 30843, 34866, 36207, 44551, 48438, 52299, 61686, 72414, 72657, 89102, 92529, 104598, 133653, 145314, 156897, 185058, 267306, 277587, 313794, 400959, 470691, 555174, 801918, 832761, 941382, 1202877, 1665522, 2405754, 3608631, 7217262, 10825893, 21651786]

約数ペア:

[(1, 21651786), (2, 10825893), (3, 7217262), (6, 3608631), (9, 2405754), (13, 1665522), (18, 1202877), (23, 941382), (26, 832761), (27, 801918), (39, 555174), (46, 470691), (54, 400959), (69, 313794), (78, 277587), (81, 267306), (117, 185058), (138, 156897), (149, 145314), (162, 133653), (207, 104598), (234, 92529), (243, 89102), (298, 72657), (299, 72414), (351, 61686), (414, 52299), (447, 48438), (486, 44551), (598, 36207), (621, 34866), (702, 30843), (894, 24219), (897, 24138), (1053, 20562), (1242, 17433), (1341, 16146), (1794, 12069), (1863, 11622), (1937, 11178), (2106, 10281), (2682, 8073), (2691, 8046), (3159, 6854), (3427, 6318), (3726, 5811), (3874, 5589), (4023, 5382)]