21167222830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{661}}^1\times {\mathrm{787}}^1$

素因数の和:1781

約数の個数: 64

約数和(自身を含む): 41277595968

約数和(自身を除く): 20110373138

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 313, 626, 661, 787, 1322, 1565, 1574, 3130, 3305, 3935, 4069, 6610, 7870, 8138, 8593, 10231, 17186, 20345, 20462, 40690, 42965, 51155, 85930, 102310, 206893, 246331, 413786, 492662, 520207, 1034465, 1040414, 1231655, 2068930, 2463310, 2601035, 2689609, 3202303, 5202070, 5379218, 6404606, 6762691, 13448045, 13525382, 16011515, 26896090, 32023030, 33813455, 67626910, 162824791, 325649582, 814123955, 1628247910, 2116722283, 4233444566, 10583611415, 21167222830]

約数ペア:

[(1, 21167222830), (2, 10583611415), (5, 4233444566), (10, 2116722283), (13, 1628247910), (26, 814123955), (65, 325649582), (130, 162824791), (313, 67626910), (626, 33813455), (661, 32023030), (787, 26896090), (1322, 16011515), (1565, 13525382), (1574, 13448045), (3130, 6762691), (3305, 6404606), (3935, 5379218), (4069, 5202070), (6610, 3202303), (7870, 2689609), (8138, 2601035), (8593, 2463310), (10231, 2068930), (17186, 1231655), (20345, 1040414), (20462, 1034465), (40690, 520207), (42965, 492662), (51155, 413786), (85930, 246331), (102310, 206893)]