21415428

素因数分解:

$2^2\times 3^4\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:594

約数の個数: 60

約数和(自身を含む): 56474572

約数和(自身を除く): 35059144

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 157, 162, 314, 324, 421, 471, 628, 842, 942, 1263, 1413, 1684, 1884, 2526, 2826, 3789, 4239, 5052, 5652, 7578, 8478, 11367, 12717, 15156, 16956, 22734, 25434, 34101, 45468, 50868, 66097, 68202, 132194, 136404, 198291, 264388, 396582, 594873, 793164, 1189746, 1784619, 2379492, 3569238, 5353857, 7138476, 10707714, 21415428]

約数ペア:

[(1, 21415428), (2, 10707714), (3, 7138476), (4, 5353857), (6, 3569238), (9, 2379492), (12, 1784619), (18, 1189746), (27, 793164), (36, 594873), (54, 396582), (81, 264388), (108, 198291), (157, 136404), (162, 132194), (314, 68202), (324, 66097), (421, 50868), (471, 45468), (628, 34101), (842, 25434), (942, 22734), (1263, 16956), (1413, 15156), (1684, 12717), (1884, 11367), (2526, 8478), (2826, 7578), (3789, 5652), (4239, 5052)]