21505770

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1$

素因数の和:597

約数の個数: 128

約数和(自身を含む): 67495680

約数和(自身を除く): 45989910

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 26, 27, 30, 33, 39, 45, 54, 55, 65, 66, 78, 90, 99, 110, 117, 130, 135, 143, 165, 195, 198, 234, 270, 286, 297, 330, 351, 390, 429, 495, 557, 585, 594, 702, 715, 858, 990, 1114, 1170, 1287, 1430, 1485, 1671, 1755, 2145, 2574, 2785, 2970, 3342, 3510, 3861, 4290, 5013, 5570, 6127, 6435, 7241, 7722, 8355, 10026, 12254, 12870, 14482, 15039, 16710, 18381, 19305, 21723, 25065, 30078, 30635, 36205, 36762, 38610, 43446, 50130, 55143, 61270, 65169, 72410, 75195, 79651, 91905, 108615, 110286, 130338, 150390, 159302, 165429, 183810, 195507, 217230, 238953, 275715, 325845, 330858, 391014, 398255, 477906, 551430, 651690, 716859, 796510, 827145, 977535, 1194765, 1433718, 1654290, 1955070, 2150577, 2389530, 3584295, 4301154, 7168590, 10752885, 21505770]

約数ペア:

[(1, 21505770), (2, 10752885), (3, 7168590), (5, 4301154), (6, 3584295), (9, 2389530), (10, 2150577), (11, 1955070), (13, 1654290), (15, 1433718), (18, 1194765), (22, 977535), (26, 827145), (27, 796510), (30, 716859), (33, 651690), (39, 551430), (45, 477906), (54, 398255), (55, 391014), (65, 330858), (66, 325845), (78, 275715), (90, 238953), (99, 217230), (110, 195507), (117, 183810), (130, 165429), (135, 159302), (143, 150390), (165, 130338), (195, 110286), (198, 108615), (234, 91905), (270, 79651), (286, 75195), (297, 72410), (330, 65169), (351, 61270), (390, 55143), (429, 50130), (495, 43446), (557, 38610), (585, 36762), (594, 36205), (702, 30635), (715, 30078), (858, 25065), (990, 21723), (1114, 19305), (1170, 18381), (1287, 16710), (1430, 15039), (1485, 14482), (1671, 12870), (1755, 12254), (2145, 10026), (2574, 8355), (2785, 7722), (2970, 7241), (3342, 6435), (3510, 6127), (3861, 5570), (4290, 5013)]