21196500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1087}}^1$

素因数の和:1122

約数の個数: 96

約数和(自身を含む): 66533376

約数和(自身を除く): 45336876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 125, 130, 150, 156, 195, 250, 260, 300, 325, 375, 390, 500, 650, 750, 780, 975, 1087, 1300, 1500, 1625, 1950, 2174, 3250, 3261, 3900, 4348, 4875, 5435, 6500, 6522, 9750, 10870, 13044, 14131, 16305, 19500, 21740, 27175, 28262, 32610, 42393, 54350, 56524, 65220, 70655, 81525, 84786, 108700, 135875, 141310, 163050, 169572, 211965, 271750, 282620, 326100, 353275, 407625, 423930, 543500, 706550, 815250, 847860, 1059825, 1413100, 1630500, 1766375, 2119650, 3532750, 4239300, 5299125, 7065500, 10598250, 21196500]

約数ペア:

[(1, 21196500), (2, 10598250), (3, 7065500), (4, 5299125), (5, 4239300), (6, 3532750), (10, 2119650), (12, 1766375), (13, 1630500), (15, 1413100), (20, 1059825), (25, 847860), (26, 815250), (30, 706550), (39, 543500), (50, 423930), (52, 407625), (60, 353275), (65, 326100), (75, 282620), (78, 271750), (100, 211965), (125, 169572), (130, 163050), (150, 141310), (156, 135875), (195, 108700), (250, 84786), (260, 81525), (300, 70655), (325, 65220), (375, 56524), (390, 54350), (500, 42393), (650, 32610), (750, 28262), (780, 27175), (975, 21740), (1087, 19500), (1300, 16305), (1500, 14131), (1625, 13044), (1950, 10870), (2174, 9750), (3250, 6522), (3261, 6500), (3900, 5435), (4348, 4875)]