21286500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:662

約数の個数: 96

約数和(自身を含む): 64786176

約数和(自身を除く): 43499676

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 25, 30, 46, 50, 60, 69, 75, 92, 100, 115, 125, 138, 150, 230, 250, 276, 300, 345, 375, 460, 500, 575, 617, 690, 750, 1150, 1234, 1380, 1500, 1725, 1851, 2300, 2468, 2875, 3085, 3450, 3702, 5750, 6170, 6900, 7404, 8625, 9255, 11500, 12340, 14191, 15425, 17250, 18510, 28382, 30850, 34500, 37020, 42573, 46275, 56764, 61700, 70955, 77125, 85146, 92550, 141910, 154250, 170292, 185100, 212865, 231375, 283820, 308500, 354775, 425730, 462750, 709550, 851460, 925500, 1064325, 1419100, 1773875, 2128650, 3547750, 4257300, 5321625, 7095500, 10643250, 21286500]

約数ペア:

[(1, 21286500), (2, 10643250), (3, 7095500), (4, 5321625), (5, 4257300), (6, 3547750), (10, 2128650), (12, 1773875), (15, 1419100), (20, 1064325), (23, 925500), (25, 851460), (30, 709550), (46, 462750), (50, 425730), (60, 354775), (69, 308500), (75, 283820), (92, 231375), (100, 212865), (115, 185100), (125, 170292), (138, 154250), (150, 141910), (230, 92550), (250, 85146), (276, 77125), (300, 70955), (345, 61700), (375, 56764), (460, 46275), (500, 42573), (575, 37020), (617, 34500), (690, 30850), (750, 28382), (1150, 18510), (1234, 17250), (1380, 15425), (1500, 14191), (1725, 12340), (1851, 11500), (2300, 9255), (2468, 8625), (2875, 7404), (3085, 6900), (3450, 6170), (3702, 5750)]