21237450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10891}}^1$

素因数の和:10919

約数の個数: 48

約数和(自身を含む): 56725536

約数和(自身を除く): 35488086

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10891, 21782, 32673, 54455, 65346, 108910, 141583, 163365, 272275, 283166, 326730, 424749, 544550, 707915, 816825, 849498, 1415830, 1633650, 2123745, 3539575, 4247490, 7079150, 10618725, 21237450]

約数ペア:

[(1, 21237450), (2, 10618725), (3, 7079150), (5, 4247490), (6, 3539575), (10, 2123745), (13, 1633650), (15, 1415830), (25, 849498), (26, 816825), (30, 707915), (39, 544550), (50, 424749), (65, 326730), (75, 283166), (78, 272275), (130, 163365), (150, 141583), (195, 108910), (325, 65346), (390, 54455), (650, 32673), (975, 21782), (1950, 10891)]