20413458

素因数分解:

$2^1\times 3^7\times {\mathrm{13}}^1\times {\mathrm{359}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 49593600

約数和(自身を除く): 29180142

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 243, 351, 359, 486, 702, 718, 729, 1053, 1077, 1458, 2106, 2154, 2187, 3159, 3231, 4374, 4667, 6318, 6462, 9334, 9477, 9693, 14001, 18954, 19386, 28002, 28431, 29079, 42003, 56862, 58158, 84006, 87237, 126009, 174474, 252018, 261711, 378027, 523422, 756054, 785133, 1134081, 1570266, 2268162, 3402243, 6804486, 10206729, 20413458]

約数ペア:

[(1, 20413458), (2, 10206729), (3, 6804486), (6, 3402243), (9, 2268162), (13, 1570266), (18, 1134081), (26, 785133), (27, 756054), (39, 523422), (54, 378027), (78, 261711), (81, 252018), (117, 174474), (162, 126009), (234, 87237), (243, 84006), (351, 58158), (359, 56862), (486, 42003), (702, 29079), (718, 28431), (729, 28002), (1053, 19386), (1077, 18954), (1458, 14001), (2106, 9693), (2154, 9477), (2187, 9334), (3159, 6462), (3231, 6318), (4374, 4667)]