21532665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 43610112

約数和(自身を除く): 22077447

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 103, 105, 165, 181, 231, 309, 385, 515, 543, 721, 905, 1133, 1155, 1267, 1545, 1991, 2163, 2715, 3399, 3605, 3801, 5665, 5973, 6335, 7931, 9955, 10815, 13937, 16995, 18643, 19005, 23793, 29865, 39655, 41811, 55929, 69685, 93215, 118965, 130501, 205073, 209055, 279645, 391503, 615219, 652505, 1025365, 1435511, 1957515, 3076095, 4306533, 7177555, 21532665]

約数ペア:

[(1, 21532665), (3, 7177555), (5, 4306533), (7, 3076095), (11, 1957515), (15, 1435511), (21, 1025365), (33, 652505), (35, 615219), (55, 391503), (77, 279645), (103, 209055), (105, 205073), (165, 130501), (181, 118965), (231, 93215), (309, 69685), (385, 55929), (515, 41811), (543, 39655), (721, 29865), (905, 23793), (1133, 19005), (1155, 18643), (1267, 16995), (1545, 13937), (1991, 10815), (2163, 9955), (2715, 7931), (3399, 6335), (3605, 5973), (3801, 5665)]