21562660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 33595100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 47, 58, 70, 94, 113, 116, 140, 145, 188, 203, 226, 235, 290, 329, 406, 452, 470, 565, 580, 658, 791, 812, 940, 1015, 1130, 1316, 1363, 1582, 1645, 2030, 2260, 2726, 3164, 3277, 3290, 3955, 4060, 5311, 5452, 6554, 6580, 6815, 7910, 9541, 10622, 13108, 13630, 15820, 16385, 19082, 21244, 22939, 26555, 27260, 32770, 37177, 38164, 45878, 47705, 53110, 65540, 74354, 91756, 95410, 106220, 114695, 148708, 154019, 185885, 190820, 229390, 308038, 371770, 458780, 616076, 743540, 770095, 1078133, 1540190, 2156266, 3080380, 4312532, 5390665, 10781330, 21562660]

約数ペア:

[(1, 21562660), (2, 10781330), (4, 5390665), (5, 4312532), (7, 3080380), (10, 2156266), (14, 1540190), (20, 1078133), (28, 770095), (29, 743540), (35, 616076), (47, 458780), (58, 371770), (70, 308038), (94, 229390), (113, 190820), (116, 185885), (140, 154019), (145, 148708), (188, 114695), (203, 106220), (226, 95410), (235, 91756), (290, 74354), (329, 65540), (406, 53110), (452, 47705), (470, 45878), (565, 38164), (580, 37177), (658, 32770), (791, 27260), (812, 26555), (940, 22939), (1015, 21244), (1130, 19082), (1316, 16385), (1363, 15820), (1582, 13630), (1645, 13108), (2030, 10622), (2260, 9541), (2726, 7910), (3164, 6815), (3277, 6580), (3290, 6554), (3955, 5452), (4060, 5311)]