21471660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17041}}^1$

素因数の和:17063

約数の個数: 72

約数和(自身を含む): 74439456

約数和(自身を除く): 52967796

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 17041, 34082, 51123, 68164, 85205, 102246, 119287, 153369, 170410, 204492, 238574, 255615, 306738, 340820, 357861, 477148, 511230, 596435, 613476, 715722, 766845, 1022460, 1073583, 1192870, 1431444, 1533690, 1789305, 2147166, 2385740, 3067380, 3578610, 4294332, 5367915, 7157220, 10735830, 21471660]

約数ペア:

[(1, 21471660), (2, 10735830), (3, 7157220), (4, 5367915), (5, 4294332), (6, 3578610), (7, 3067380), (9, 2385740), (10, 2147166), (12, 1789305), (14, 1533690), (15, 1431444), (18, 1192870), (20, 1073583), (21, 1022460), (28, 766845), (30, 715722), (35, 613476), (36, 596435), (42, 511230), (45, 477148), (60, 357861), (63, 340820), (70, 306738), (84, 255615), (90, 238574), (105, 204492), (126, 170410), (140, 153369), (180, 119287), (210, 102246), (252, 85205), (315, 68164), (420, 51123), (630, 34082), (1260, 17041)]