21557190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{983}}^1$

素因数の和:1053

約数の個数: 64

約数和(自身を含む): 56111616

約数和(自身を除く): 34554426

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 43, 51, 85, 86, 102, 129, 170, 215, 255, 258, 430, 510, 645, 731, 983, 1290, 1462, 1966, 2193, 2949, 3655, 4386, 4915, 5898, 7310, 9830, 10965, 14745, 16711, 21930, 29490, 33422, 42269, 50133, 83555, 84538, 100266, 126807, 167110, 211345, 250665, 253614, 422690, 501330, 634035, 718573, 1268070, 1437146, 2155719, 3592865, 4311438, 7185730, 10778595, 21557190]

約数ペア:

[(1, 21557190), (2, 10778595), (3, 7185730), (5, 4311438), (6, 3592865), (10, 2155719), (15, 1437146), (17, 1268070), (30, 718573), (34, 634035), (43, 501330), (51, 422690), (85, 253614), (86, 250665), (102, 211345), (129, 167110), (170, 126807), (215, 100266), (255, 84538), (258, 83555), (430, 50133), (510, 42269), (645, 33422), (731, 29490), (983, 21930), (1290, 16711), (1462, 14745), (1966, 10965), (2193, 9830), (2949, 7310), (3655, 5898), (4386, 4915)]