217804923

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 391987200

約数和(自身を除く): 174182277

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 131, 133, 171, 189, 393, 399, 463, 513, 917, 1179, 1197, 1389, 2489, 2751, 3241, 3537, 3591, 4167, 7467, 8253, 8797, 9723, 12501, 17423, 22401, 24759, 26391, 29169, 52269, 60653, 61579, 67203, 79173, 87507, 156807, 181959, 184737, 237519, 424571, 470421, 545877, 554211, 1152407, 1273713, 1637631, 1662633, 3457221, 3821139, 8066849, 10371663, 11463417, 24200547, 31114989, 72601641, 217804923]

約数ペア:

[(1, 217804923), (3, 72601641), (7, 31114989), (9, 24200547), (19, 11463417), (21, 10371663), (27, 8066849), (57, 3821139), (63, 3457221), (131, 1662633), (133, 1637631), (171, 1273713), (189, 1152407), (393, 554211), (399, 545877), (463, 470421), (513, 424571), (917, 237519), (1179, 184737), (1197, 181959), (1389, 156807), (2489, 87507), (2751, 79173), (3241, 67203), (3537, 61579), (3591, 60653), (4167, 52269), (7467, 29169), (8253, 26391), (8797, 24759), (9723, 22401), (12501, 17423)]