21221730

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1483}}^1$

素因数の和:1552

約数の個数: 64

約数和(自身を含む): 57697920

約数和(自身を除く): 36476190

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 53, 54, 90, 106, 135, 159, 265, 270, 318, 477, 530, 795, 954, 1431, 1483, 1590, 2385, 2862, 2966, 4449, 4770, 7155, 7415, 8898, 13347, 14310, 14830, 22245, 26694, 40041, 44490, 66735, 78599, 80082, 133470, 157198, 200205, 235797, 392995, 400410, 471594, 707391, 785990, 1178985, 1414782, 2122173, 2357970, 3536955, 4244346, 7073910, 10610865, 21221730]

約数ペア:

[(1, 21221730), (2, 10610865), (3, 7073910), (5, 4244346), (6, 3536955), (9, 2357970), (10, 2122173), (15, 1414782), (18, 1178985), (27, 785990), (30, 707391), (45, 471594), (53, 400410), (54, 392995), (90, 235797), (106, 200205), (135, 157198), (159, 133470), (265, 80082), (270, 78599), (318, 66735), (477, 44490), (530, 40041), (795, 26694), (954, 22245), (1431, 14830), (1483, 14310), (1590, 13347), (2385, 8898), (2862, 7415), (2966, 7155), (4449, 4770)]