21427380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9157}}^1$

素因数の和:9185

約数の個数: 72

約数和(自身を含む): 70003752

約数和(自身を除く): 48576372

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, 9157, 18314, 27471, 36628, 45785, 54942, 82413, 91570, 109884, 119041, 137355, 164826, 183140, 238082, 274710, 329652, 357123, 412065, 476164, 549420, 595205, 714246, 824130, 1071369, 1190410, 1428492, 1648260, 1785615, 2142738, 2380820, 3571230, 4285476, 5356845, 7142460, 10713690, 21427380]

約数ペア:

[(1, 21427380), (2, 10713690), (3, 7142460), (4, 5356845), (5, 4285476), (6, 3571230), (9, 2380820), (10, 2142738), (12, 1785615), (13, 1648260), (15, 1428492), (18, 1190410), (20, 1071369), (26, 824130), (30, 714246), (36, 595205), (39, 549420), (45, 476164), (52, 412065), (60, 357123), (65, 329652), (78, 274710), (90, 238082), (117, 183140), (130, 164826), (156, 137355), (180, 119041), (195, 109884), (234, 91570), (260, 82413), (390, 54942), (468, 45785), (585, 36628), (780, 27471), (1170, 18314), (2340, 9157)]