21747330

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1997}}^1$

素因数の和:2032

約数の個数: 72

約数和(自身を含む): 62181756

約数和(自身を除く): 40434426

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 121, 165, 198, 242, 330, 363, 495, 605, 726, 990, 1089, 1210, 1815, 1997, 2178, 3630, 3994, 5445, 5991, 9985, 10890, 11982, 17973, 19970, 21967, 29955, 35946, 43934, 59910, 65901, 89865, 109835, 131802, 179730, 197703, 219670, 241637, 329505, 395406, 483274, 659010, 724911, 988515, 1208185, 1449822, 1977030, 2174733, 2416370, 3624555, 4349466, 7249110, 10873665, 21747330]

約数ペア:

[(1, 21747330), (2, 10873665), (3, 7249110), (5, 4349466), (6, 3624555), (9, 2416370), (10, 2174733), (11, 1977030), (15, 1449822), (18, 1208185), (22, 988515), (30, 724911), (33, 659010), (45, 483274), (55, 395406), (66, 329505), (90, 241637), (99, 219670), (110, 197703), (121, 179730), (165, 131802), (198, 109835), (242, 89865), (330, 65901), (363, 59910), (495, 43934), (605, 35946), (726, 29955), (990, 21967), (1089, 19970), (1210, 17973), (1815, 11982), (1997, 10890), (2178, 9985), (3630, 5991), (3994, 5445)]