21615750

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:775

約数の個数: 96

約数和(自身を含む): 63030240

約数和(自身を除く): 41414490

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 65, 75, 78, 90, 117, 125, 130, 150, 195, 225, 234, 250, 325, 375, 390, 450, 585, 650, 739, 750, 975, 1125, 1170, 1478, 1625, 1950, 2217, 2250, 2925, 3250, 3695, 4434, 4875, 5850, 6651, 7390, 9607, 9750, 11085, 13302, 14625, 18475, 19214, 22170, 28821, 29250, 33255, 36950, 48035, 55425, 57642, 66510, 86463, 92375, 96070, 110850, 144105, 166275, 172926, 184750, 240175, 277125, 288210, 332550, 432315, 480350, 554250, 720525, 831375, 864630, 1200875, 1441050, 1662750, 2161575, 2401750, 3602625, 4323150, 7205250, 10807875, 21615750]

約数ペア:

[(1, 21615750), (2, 10807875), (3, 7205250), (5, 4323150), (6, 3602625), (9, 2401750), (10, 2161575), (13, 1662750), (15, 1441050), (18, 1200875), (25, 864630), (26, 831375), (30, 720525), (39, 554250), (45, 480350), (50, 432315), (65, 332550), (75, 288210), (78, 277125), (90, 240175), (117, 184750), (125, 172926), (130, 166275), (150, 144105), (195, 110850), (225, 96070), (234, 92375), (250, 86463), (325, 66510), (375, 57642), (390, 55425), (450, 48035), (585, 36950), (650, 33255), (739, 29250), (750, 28821), (975, 22170), (1125, 19214), (1170, 18475), (1478, 14625), (1625, 13302), (1950, 11085), (2217, 9750), (2250, 9607), (2925, 7390), (3250, 6651), (3695, 5850), (4434, 4875)]