21403980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3049}}^1$

素因数の和:3080

約数の個数: 96

約数和(自身を含む): 71736000

約数和(自身を除く): 50332020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 3049, 3510, 6098, 7020, 9147, 12196, 15245, 18294, 27441, 30490, 36588, 39637, 45735, 54882, 60980, 79274, 82323, 91470, 109764, 118911, 137205, 158548, 164646, 182940, 198185, 237822, 274410, 329292, 356733, 396370, 411615, 475644, 548820, 594555, 713466, 792740, 823230, 1070199, 1189110, 1426932, 1646460, 1783665, 2140398, 2378220, 3567330, 4280796, 5350995, 7134660, 10701990, 21403980]

約数ペア:

[(1, 21403980), (2, 10701990), (3, 7134660), (4, 5350995), (5, 4280796), (6, 3567330), (9, 2378220), (10, 2140398), (12, 1783665), (13, 1646460), (15, 1426932), (18, 1189110), (20, 1070199), (26, 823230), (27, 792740), (30, 713466), (36, 594555), (39, 548820), (45, 475644), (52, 411615), (54, 396370), (60, 356733), (65, 329292), (78, 274410), (90, 237822), (108, 198185), (117, 182940), (130, 164646), (135, 158548), (156, 137205), (180, 118911), (195, 109764), (234, 91470), (260, 82323), (270, 79274), (351, 60980), (390, 54882), (468, 45735), (540, 39637), (585, 36588), (702, 30490), (780, 27441), (1170, 18294), (1404, 15245), (1755, 12196), (2340, 9147), (3049, 7020), (3510, 6098)]