20178849747

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{3137}}^1$

素因数の和:3460

約数の個数: 64

約数和(自身を含む): 32660103168

約数和(自身を除く): 12481253421

約数列:

[1, 3, 7, 21, 31, 41, 93, 123, 217, 241, 287, 651, 723, 861, 1271, 1687, 3137, 3813, 5061, 7471, 8897, 9411, 9881, 21959, 22413, 26691, 29643, 52297, 65877, 69167, 97247, 128617, 156891, 207501, 291741, 306311, 385851, 680729, 756017, 900319, 918933, 2042187, 2144177, 2268051, 2700957, 3987127, 5292119, 6432531, 11961381, 15876357, 23436527, 27909889, 30996697, 70309581, 83729667, 92990091, 164055689, 216976879, 492167067, 650930637, 960897607, 2882692821, 6726283249, 20178849747]

約数ペア:

[(1, 20178849747), (3, 6726283249), (7, 2882692821), (21, 960897607), (31, 650930637), (41, 492167067), (93, 216976879), (123, 164055689), (217, 92990091), (241, 83729667), (287, 70309581), (651, 30996697), (723, 27909889), (861, 23436527), (1271, 15876357), (1687, 11961381), (3137, 6432531), (3813, 5292119), (5061, 3987127), (7471, 2700957), (8897, 2268051), (9411, 2144177), (9881, 2042187), (21959, 918933), (22413, 900319), (26691, 756017), (29643, 680729), (52297, 385851), (65877, 306311), (69167, 291741), (97247, 207501), (128617, 156891)]