21956168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 47295360

約数和(自身を除く): 25339192

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 67, 92, 104, 134, 137, 184, 268, 274, 299, 536, 548, 598, 871, 1096, 1196, 1541, 1742, 1781, 2392, 3082, 3151, 3484, 3562, 6164, 6302, 6968, 7124, 9179, 12328, 12604, 14248, 18358, 20033, 25208, 36716, 40066, 40963, 73432, 80132, 81926, 119327, 160264, 163852, 211117, 238654, 327704, 422234, 477308, 844468, 954616, 1688936, 2744521, 5489042, 10978084, 21956168]

約数ペア:

[(1, 21956168), (2, 10978084), (4, 5489042), (8, 2744521), (13, 1688936), (23, 954616), (26, 844468), (46, 477308), (52, 422234), (67, 327704), (92, 238654), (104, 211117), (134, 163852), (137, 160264), (184, 119327), (268, 81926), (274, 80132), (299, 73432), (536, 40963), (548, 40066), (598, 36716), (871, 25208), (1096, 20033), (1196, 18358), (1541, 14248), (1742, 12604), (1781, 12328), (2392, 9179), (3082, 7124), (3151, 6968), (3484, 6302), (3562, 6164)]