21115458

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4297}}^1$

素因数の和:4328

約数の個数: 64

約数和(自身を含む): 57765120

約数和(自身を除く): 36649662

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 182, 189, 234, 273, 351, 378, 546, 702, 819, 1638, 2457, 4297, 4914, 8594, 12891, 25782, 30079, 38673, 55861, 60158, 77346, 90237, 111722, 116019, 167583, 180474, 232038, 270711, 335166, 391027, 502749, 541422, 782054, 812133, 1005498, 1173081, 1508247, 1624266, 2346162, 3016494, 3519243, 7038486, 10557729, 21115458]

約数ペア:

[(1, 21115458), (2, 10557729), (3, 7038486), (6, 3519243), (7, 3016494), (9, 2346162), (13, 1624266), (14, 1508247), (18, 1173081), (21, 1005498), (26, 812133), (27, 782054), (39, 541422), (42, 502749), (54, 391027), (63, 335166), (78, 270711), (91, 232038), (117, 180474), (126, 167583), (182, 116019), (189, 111722), (234, 90237), (273, 77346), (351, 60158), (378, 55861), (546, 38673), (702, 30079), (819, 25782), (1638, 12891), (2457, 8594), (4297, 4914)]