21999960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2657}}^1$

素因数の和:2697

約数の個数: 96

約数和(自身を含む): 74636640

約数和(自身を除く): 52636680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2657, 2760, 4140, 5314, 7971, 8280, 10628, 13285, 15942, 21256, 23913, 26570, 31884, 39855, 47826, 53140, 61111, 63768, 79710, 95652, 106280, 119565, 122222, 159420, 183333, 191304, 239130, 244444, 305555, 318840, 366666, 478260, 488888, 549999, 611110, 733332, 916665, 956520, 1099998, 1222220, 1466664, 1833330, 2199996, 2444440, 2749995, 3666660, 4399992, 5499990, 7333320, 10999980, 21999960]

約数ペア:

[(1, 21999960), (2, 10999980), (3, 7333320), (4, 5499990), (5, 4399992), (6, 3666660), (8, 2749995), (9, 2444440), (10, 2199996), (12, 1833330), (15, 1466664), (18, 1222220), (20, 1099998), (23, 956520), (24, 916665), (30, 733332), (36, 611110), (40, 549999), (45, 488888), (46, 478260), (60, 366666), (69, 318840), (72, 305555), (90, 244444), (92, 239130), (115, 191304), (120, 183333), (138, 159420), (180, 122222), (184, 119565), (207, 106280), (230, 95652), (276, 79710), (345, 63768), (360, 61111), (414, 53140), (460, 47826), (552, 39855), (690, 31884), (828, 26570), (920, 23913), (1035, 21256), (1380, 15942), (1656, 13285), (2070, 10628), (2657, 8280), (2760, 7971), (4140, 5314)]