21519984

素因数分解:

$2^4\times 3^1\times {\mathrm{47}}^1\times {\mathrm{9539}}^1$

素因数の和:9597

約数の個数: 40

約数和(自身を含む): 56782080

約数和(自身を除く): 35262096

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 47, 48, 94, 141, 188, 282, 376, 564, 752, 1128, 2256, 9539, 19078, 28617, 38156, 57234, 76312, 114468, 152624, 228936, 448333, 457872, 896666, 1344999, 1793332, 2689998, 3586664, 5379996, 7173328, 10759992, 21519984]

約数ペア:

[(1, 21519984), (2, 10759992), (3, 7173328), (4, 5379996), (6, 3586664), (8, 2689998), (12, 1793332), (16, 1344999), (24, 896666), (47, 457872), (48, 448333), (94, 228936), (141, 152624), (188, 114468), (282, 76312), (376, 57234), (564, 38156), (752, 28617), (1128, 19078), (2256, 9539)]