21155940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9041}}^1$

素因数の和:9069

約数の個数: 72

約数和(自身を含む): 69117048

約数和(自身を除く): 47961108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9041, 18082, 27123, 36164, 45205, 54246, 81369, 90410, 108492, 117533, 135615, 162738, 180820, 235066, 271230, 325476, 352599, 406845, 470132, 542460, 587665, 705198, 813690, 1057797, 1175330, 1410396, 1627380, 1762995, 2115594, 2350660, 3525990, 4231188, 5288985, 7051980, 10577970, 21155940]

約数ペア:

[(1, 21155940), (2, 10577970), (3, 7051980), (4, 5288985), (5, 4231188), (6, 3525990), (9, 2350660), (10, 2115594), (12, 1762995), (13, 1627380), (15, 1410396), (18, 1175330), (20, 1057797), (26, 813690), (30, 705198), (36, 587665), (39, 542460), (45, 470132), (52, 406845), (60, 352599), (65, 325476), (78, 271230), (90, 235066), (117, 180820), (130, 162738), (156, 135615), (180, 117533), (195, 108492), (234, 90410), (260, 81369), (390, 54246), (468, 45205), (585, 36164), (780, 27123), (1170, 18082), (2340, 9041)]