21031562268

素因数分解:

$2^2\times 3^2\times {\mathrm{293}}^1\times {\mathrm{457}}^1\times {\mathrm{4363}}^1$

素因数の和:5123

約数の個数: 72

約数和(自身を含む): 53473540848

約数和(自身を除く): 32441978580

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 293, 457, 586, 879, 914, 1172, 1371, 1758, 1828, 2637, 2742, 3516, 4113, 4363, 5274, 5484, 8226, 8726, 10548, 13089, 16452, 17452, 26178, 39267, 52356, 78534, 133901, 157068, 267802, 401703, 535604, 803406, 1205109, 1278359, 1606812, 1993891, 2410218, 2556718, 3835077, 3987782, 4820436, 5113436, 5981673, 7670154, 7975564, 11505231, 11963346, 15340308, 17945019, 23010462, 23926692, 35890038, 46020924, 71780076, 584210063, 1168420126, 1752630189, 2336840252, 3505260378, 5257890567, 7010520756, 10515781134, 21031562268]

約数ペア:

[(1, 21031562268), (2, 10515781134), (3, 7010520756), (4, 5257890567), (6, 3505260378), (9, 2336840252), (12, 1752630189), (18, 1168420126), (36, 584210063), (293, 71780076), (457, 46020924), (586, 35890038), (879, 23926692), (914, 23010462), (1172, 17945019), (1371, 15340308), (1758, 11963346), (1828, 11505231), (2637, 7975564), (2742, 7670154), (3516, 5981673), (4113, 5113436), (4363, 4820436), (5274, 3987782), (5484, 3835077), (8226, 2556718), (8726, 2410218), (10548, 1993891), (13089, 1606812), (16452, 1278359), (17452, 1205109), (26178, 803406), (39267, 535604), (52356, 401703), (78534, 267802), (133901, 157068)]