21167820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5113}}^1$

素因数の和:5151

約数の個数: 72

約数和(自身を含む): 67013856

約数和(自身を除く): 45846036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5113, 10226, 15339, 20452, 25565, 30678, 46017, 51130, 61356, 76695, 92034, 102260, 117599, 153390, 184068, 230085, 235198, 306780, 352797, 460170, 470396, 587995, 705594, 920340, 1058391, 1175990, 1411188, 1763985, 2116782, 2351980, 3527970, 4233564, 5291955, 7055940, 10583910, 21167820]

約数ペア:

[(1, 21167820), (2, 10583910), (3, 7055940), (4, 5291955), (5, 4233564), (6, 3527970), (9, 2351980), (10, 2116782), (12, 1763985), (15, 1411188), (18, 1175990), (20, 1058391), (23, 920340), (30, 705594), (36, 587995), (45, 470396), (46, 460170), (60, 352797), (69, 306780), (90, 235198), (92, 230085), (115, 184068), (138, 153390), (180, 117599), (207, 102260), (230, 92034), (276, 76695), (345, 61356), (414, 51130), (460, 46017), (690, 30678), (828, 25565), (1035, 20452), (1380, 15339), (2070, 10226), (4140, 5113)]