21167368820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{419}}^1\times {\mathrm{2341}}^1$

素因数の和:2865

約数の個数: 96

約数和(自身を含む): 48583946880

約数和(自身を除く): 27416578060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 419, 830, 838, 1079, 1660, 1676, 2095, 2158, 2341, 4190, 4316, 4682, 5395, 5447, 8380, 9364, 10790, 10894, 11705, 21580, 21788, 23410, 27235, 30433, 34777, 46820, 54470, 60866, 69554, 108940, 121732, 139108, 152165, 173885, 194303, 304330, 347770, 388606, 452101, 608660, 695540, 777212, 904202, 971515, 980879, 1808404, 1943030, 1961758, 2260505, 2525939, 3886060, 3923516, 4521010, 4904395, 5051878, 9042020, 9808790, 10103756, 12629695, 12751427, 19617580, 25259390, 25502854, 50518780, 51005708, 63757135, 81412957, 127514270, 162825914, 255028540, 325651828, 407064785, 814129570, 1058368441, 1628259140, 2116736882, 4233473764, 5291842205, 10583684410, 21167368820]

約数ペア:

[(1, 21167368820), (2, 10583684410), (4, 5291842205), (5, 4233473764), (10, 2116736882), (13, 1628259140), (20, 1058368441), (26, 814129570), (52, 407064785), (65, 325651828), (83, 255028540), (130, 162825914), (166, 127514270), (260, 81412957), (332, 63757135), (415, 51005708), (419, 50518780), (830, 25502854), (838, 25259390), (1079, 19617580), (1660, 12751427), (1676, 12629695), (2095, 10103756), (2158, 9808790), (2341, 9042020), (4190, 5051878), (4316, 4904395), (4682, 4521010), (5395, 3923516), (5447, 3886060), (8380, 2525939), (9364, 2260505), (10790, 1961758), (10894, 1943030), (11705, 1808404), (21580, 980879), (21788, 971515), (23410, 904202), (27235, 777212), (30433, 695540), (34777, 608660), (46820, 452101), (54470, 388606), (60866, 347770), (69554, 304330), (108940, 194303), (121732, 173885), (139108, 152165)]