21854484

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 58968000

約数和(自身を除く): 37113516

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 89, 114, 171, 178, 228, 267, 342, 356, 359, 534, 684, 718, 801, 1068, 1077, 1436, 1602, 1691, 2154, 3204, 3231, 3382, 4308, 5073, 6462, 6764, 6821, 10146, 12924, 13642, 15219, 20292, 20463, 27284, 30438, 31951, 40926, 60876, 61389, 63902, 81852, 95853, 122778, 127804, 191706, 245556, 287559, 383412, 575118, 607069, 1150236, 1214138, 1821207, 2428276, 3642414, 5463621, 7284828, 10927242, 21854484]

約数ペア:

[(1, 21854484), (2, 10927242), (3, 7284828), (4, 5463621), (6, 3642414), (9, 2428276), (12, 1821207), (18, 1214138), (19, 1150236), (36, 607069), (38, 575118), (57, 383412), (76, 287559), (89, 245556), (114, 191706), (171, 127804), (178, 122778), (228, 95853), (267, 81852), (342, 63902), (356, 61389), (359, 60876), (534, 40926), (684, 31951), (718, 30438), (801, 27284), (1068, 20463), (1077, 20292), (1436, 15219), (1602, 13642), (1691, 12924), (2154, 10146), (3204, 6821), (3231, 6764), (3382, 6462), (4308, 5073)]