21026390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:162

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 28615594

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 47, 49, 55, 70, 77, 83, 94, 98, 110, 154, 166, 235, 245, 329, 385, 415, 470, 490, 517, 539, 581, 658, 770, 830, 913, 1034, 1078, 1162, 1645, 1826, 2303, 2585, 2695, 2905, 3290, 3619, 3901, 4067, 4565, 4606, 5170, 5390, 5810, 6391, 7238, 7802, 8134, 9130, 11515, 12782, 18095, 19505, 20335, 23030, 25333, 27307, 31955, 36190, 39010, 40670, 42911, 44737, 50666, 54614, 63910, 85822, 89474, 126665, 136535, 191149, 214555, 223685, 253330, 273070, 300377, 382298, 429110, 447370, 600754, 955745, 1501885, 1911490, 2102639, 3003770, 4205278, 10513195, 21026390]

約数ペア:

[(1, 21026390), (2, 10513195), (5, 4205278), (7, 3003770), (10, 2102639), (11, 1911490), (14, 1501885), (22, 955745), (35, 600754), (47, 447370), (49, 429110), (55, 382298), (70, 300377), (77, 273070), (83, 253330), (94, 223685), (98, 214555), (110, 191149), (154, 136535), (166, 126665), (235, 89474), (245, 85822), (329, 63910), (385, 54614), (415, 50666), (470, 44737), (490, 42911), (517, 40670), (539, 39010), (581, 36190), (658, 31955), (770, 27307), (830, 25333), (913, 23030), (1034, 20335), (1078, 19505), (1162, 18095), (1645, 12782), (1826, 11515), (2303, 9130), (2585, 8134), (2695, 7802), (2905, 7238), (3290, 6391), (3619, 5810), (3901, 5390), (4067, 5170), (4565, 4606)]