21481710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:677

約数の個数: 64

約数和(自身を含む): 55432512

約数和(自身を除く): 33950802

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 73, 85, 102, 146, 170, 219, 255, 365, 438, 510, 577, 730, 1095, 1154, 1241, 1731, 2190, 2482, 2885, 3462, 3723, 5770, 6205, 7446, 8655, 9809, 12410, 17310, 18615, 19618, 29427, 37230, 42121, 49045, 58854, 84242, 98090, 126363, 147135, 210605, 252726, 294270, 421210, 631815, 716057, 1263630, 1432114, 2148171, 3580285, 4296342, 7160570, 10740855, 21481710]

約数ペア:

[(1, 21481710), (2, 10740855), (3, 7160570), (5, 4296342), (6, 3580285), (10, 2148171), (15, 1432114), (17, 1263630), (30, 716057), (34, 631815), (51, 421210), (73, 294270), (85, 252726), (102, 210605), (146, 147135), (170, 126363), (219, 98090), (255, 84242), (365, 58854), (438, 49045), (510, 42121), (577, 37230), (730, 29427), (1095, 19618), (1154, 18615), (1241, 17310), (1731, 12410), (2190, 9809), (2482, 8655), (2885, 7446), (3462, 6205), (3723, 5770)]