21901500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:213

約数の個数: 144

約数和(自身を含む): 71774976

約数和(自身を除く): 49873476

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 31, 36, 45, 50, 60, 62, 75, 90, 93, 100, 124, 125, 150, 155, 157, 180, 186, 225, 250, 279, 300, 310, 314, 372, 375, 450, 465, 471, 500, 558, 620, 628, 750, 775, 785, 900, 930, 942, 1116, 1125, 1395, 1413, 1500, 1550, 1570, 1860, 1884, 2250, 2325, 2355, 2790, 2826, 3100, 3140, 3875, 3925, 4500, 4650, 4710, 4867, 5580, 5652, 6975, 7065, 7750, 7850, 9300, 9420, 9734, 11625, 11775, 13950, 14130, 14601, 15500, 15700, 19468, 19625, 23250, 23550, 24335, 27900, 28260, 29202, 34875, 35325, 39250, 43803, 46500, 47100, 48670, 58404, 58875, 69750, 70650, 73005, 78500, 87606, 97340, 117750, 121675, 139500, 141300, 146010, 175212, 176625, 219015, 235500, 243350, 292020, 353250, 365025, 438030, 486700, 608375, 706500, 730050, 876060, 1095075, 1216750, 1460100, 1825125, 2190150, 2433500, 3650250, 4380300, 5475375, 7300500, 10950750, 21901500]

約数ペア:

[(1, 21901500), (2, 10950750), (3, 7300500), (4, 5475375), (5, 4380300), (6, 3650250), (9, 2433500), (10, 2190150), (12, 1825125), (15, 1460100), (18, 1216750), (20, 1095075), (25, 876060), (30, 730050), (31, 706500), (36, 608375), (45, 486700), (50, 438030), (60, 365025), (62, 353250), (75, 292020), (90, 243350), (93, 235500), (100, 219015), (124, 176625), (125, 175212), (150, 146010), (155, 141300), (157, 139500), (180, 121675), (186, 117750), (225, 97340), (250, 87606), (279, 78500), (300, 73005), (310, 70650), (314, 69750), (372, 58875), (375, 58404), (450, 48670), (465, 47100), (471, 46500), (500, 43803), (558, 39250), (620, 35325), (628, 34875), (750, 29202), (775, 28260), (785, 27900), (900, 24335), (930, 23550), (942, 23250), (1116, 19625), (1125, 19468), (1395, 15700), (1413, 15500), (1500, 14601), (1550, 14130), (1570, 13950), (1860, 11775), (1884, 11625), (2250, 9734), (2325, 9420), (2355, 9300), (2790, 7850), (2826, 7750), (3100, 7065), (3140, 6975), (3875, 5652), (3925, 5580), (4500, 4867), (4650, 4710)]