21243924

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{15131}}^1$

素因数の和:15157

約数の個数: 48

約数和(自身を含む): 59317440

約数和(自身を除く): 38073516

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 15131, 30262, 45393, 60524, 90786, 136179, 181572, 196703, 272358, 393406, 408537, 544716, 590109, 786812, 817074, 1180218, 1634148, 1770327, 2360436, 3540654, 5310981, 7081308, 10621962, 21243924]

約数ペア:

[(1, 21243924), (2, 10621962), (3, 7081308), (4, 5310981), (6, 3540654), (9, 2360436), (12, 1770327), (13, 1634148), (18, 1180218), (26, 817074), (27, 786812), (36, 590109), (39, 544716), (52, 408537), (54, 393406), (78, 272358), (108, 196703), (117, 181572), (156, 136179), (234, 90786), (351, 60524), (468, 45393), (702, 30262), (1404, 15131)]