21079960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2083}}^1$

素因数の和:2128

約数の個数: 64

約数和(自身を含む): 54017280

約数和(自身を除く): 32937320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2083, 2530, 4166, 5060, 8332, 10120, 10415, 16664, 20830, 22913, 41660, 45826, 47909, 83320, 91652, 95818, 114565, 183304, 191636, 229130, 239545, 383272, 458260, 479090, 526999, 916520, 958180, 1053998, 1916360, 2107996, 2634995, 4215992, 5269990, 10539980, 21079960]

約数ペア:

[(1, 21079960), (2, 10539980), (4, 5269990), (5, 4215992), (8, 2634995), (10, 2107996), (11, 1916360), (20, 1053998), (22, 958180), (23, 916520), (40, 526999), (44, 479090), (46, 458260), (55, 383272), (88, 239545), (92, 229130), (110, 191636), (115, 183304), (184, 114565), (220, 95818), (230, 91652), (253, 83320), (440, 47909), (460, 45826), (506, 41660), (920, 22913), (1012, 20830), (1265, 16664), (2024, 10415), (2083, 10120), (2530, 8332), (4166, 5060)]