21897700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1171}}^1$

素因数の和:1213

約数の個数: 72

約数和(自身を含む): 54933984

約数和(自身を除く): 33036284

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 170, 187, 220, 275, 340, 374, 425, 550, 748, 850, 935, 1100, 1171, 1700, 1870, 2342, 3740, 4675, 4684, 5855, 9350, 11710, 12881, 18700, 19907, 23420, 25762, 29275, 39814, 51524, 58550, 64405, 79628, 99535, 117100, 128810, 199070, 218977, 257620, 322025, 398140, 437954, 497675, 644050, 875908, 995350, 1094885, 1288100, 1990700, 2189770, 4379540, 5474425, 10948850, 21897700]

約数ペア:

[(1, 21897700), (2, 10948850), (4, 5474425), (5, 4379540), (10, 2189770), (11, 1990700), (17, 1288100), (20, 1094885), (22, 995350), (25, 875908), (34, 644050), (44, 497675), (50, 437954), (55, 398140), (68, 322025), (85, 257620), (100, 218977), (110, 199070), (170, 128810), (187, 117100), (220, 99535), (275, 79628), (340, 64405), (374, 58550), (425, 51524), (550, 39814), (748, 29275), (850, 25762), (935, 23420), (1100, 19907), (1171, 18700), (1700, 12881), (1870, 11710), (2342, 9350), (3740, 5855), (4675, 4684)]