21535260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:563

約数の個数: 96

約数和(自身を含む): 65463552

約数和(自身を除く): 43928292

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 43, 51, 60, 68, 85, 86, 102, 129, 170, 172, 204, 215, 255, 258, 340, 430, 491, 510, 516, 645, 731, 860, 982, 1020, 1290, 1462, 1473, 1964, 2193, 2455, 2580, 2924, 2946, 3655, 4386, 4910, 5892, 7310, 7365, 8347, 8772, 9820, 10965, 14620, 14730, 16694, 21113, 21930, 25041, 29460, 33388, 41735, 42226, 43860, 50082, 63339, 83470, 84452, 100164, 105565, 125205, 126678, 166940, 211130, 250410, 253356, 316695, 358921, 422260, 500820, 633390, 717842, 1076763, 1266780, 1435684, 1794605, 2153526, 3589210, 4307052, 5383815, 7178420, 10767630, 21535260]

約数ペア:

[(1, 21535260), (2, 10767630), (3, 7178420), (4, 5383815), (5, 4307052), (6, 3589210), (10, 2153526), (12, 1794605), (15, 1435684), (17, 1266780), (20, 1076763), (30, 717842), (34, 633390), (43, 500820), (51, 422260), (60, 358921), (68, 316695), (85, 253356), (86, 250410), (102, 211130), (129, 166940), (170, 126678), (172, 125205), (204, 105565), (215, 100164), (255, 84452), (258, 83470), (340, 63339), (430, 50082), (491, 43860), (510, 42226), (516, 41735), (645, 33388), (731, 29460), (860, 25041), (982, 21930), (1020, 21113), (1290, 16694), (1462, 14730), (1473, 14620), (1964, 10965), (2193, 9820), (2455, 8772), (2580, 8347), (2924, 7365), (2946, 7310), (3655, 5892), (4386, 4910)]