18640584

素因数分解:

$2^3\times 3^3\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:635

約数の個数: 64

約数和(自身を含む): 52152000

約数和(自身を除く): 33511416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 211, 216, 409, 422, 633, 818, 844, 1227, 1266, 1636, 1688, 1899, 2454, 2532, 3272, 3681, 3798, 4908, 5064, 5697, 7362, 7596, 9816, 11043, 11394, 14724, 15192, 22086, 22788, 29448, 44172, 45576, 86299, 88344, 172598, 258897, 345196, 517794, 690392, 776691, 1035588, 1553382, 2071176, 2330073, 3106764, 4660146, 6213528, 9320292, 18640584]

約数ペア:

[(1, 18640584), (2, 9320292), (3, 6213528), (4, 4660146), (6, 3106764), (8, 2330073), (9, 2071176), (12, 1553382), (18, 1035588), (24, 776691), (27, 690392), (36, 517794), (54, 345196), (72, 258897), (108, 172598), (211, 88344), (216, 86299), (409, 45576), (422, 44172), (633, 29448), (818, 22788), (844, 22086), (1227, 15192), (1266, 14724), (1636, 11394), (1688, 11043), (1899, 9816), (2454, 7596), (2532, 7362), (3272, 5697), (3681, 5064), (3798, 4908)]