20921844704

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{323507}}^1$

素因数の和:323607

約数の個数: 48

約数和(自身を含む): 43044680448

約数和(自身を除く): 22122835744

約数列:

[1, 2, 4, 8, 16, 32, 43, 47, 86, 94, 172, 188, 344, 376, 688, 752, 1376, 1504, 2021, 4042, 8084, 16168, 32336, 64672, 323507, 647014, 1294028, 2588056, 5176112, 10352224, 13910801, 15204829, 27821602, 30409658, 55643204, 60819316, 111286408, 121638632, 222572816, 243277264, 445145632, 486554528, 653807647, 1307615294, 2615230588, 5230461176, 10460922352, 20921844704]

約数ペア:

[(1, 20921844704), (2, 10460922352), (4, 5230461176), (8, 2615230588), (16, 1307615294), (32, 653807647), (43, 486554528), (47, 445145632), (86, 243277264), (94, 222572816), (172, 121638632), (188, 111286408), (344, 60819316), (376, 55643204), (688, 30409658), (752, 27821602), (1376, 15204829), (1504, 13910801), (2021, 10352224), (4042, 5176112), (8084, 2588056), (16168, 1294028), (32336, 647014), (64672, 323507)]