21664422

素因数分解:

$2^1\times 3^8\times {\mathrm{13}}^1\times {\mathrm{127}}^1$

素因数の和:166

約数の個数: 72

約数和(自身を含む): 52905216

約数和(自身を除く): 31240794

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 127, 162, 234, 243, 254, 351, 381, 486, 702, 729, 762, 1053, 1143, 1458, 1651, 2106, 2187, 2286, 3159, 3302, 3429, 4374, 4953, 6318, 6561, 6858, 9477, 9906, 10287, 13122, 14859, 18954, 20574, 28431, 29718, 30861, 44577, 56862, 61722, 85293, 89154, 92583, 133731, 170586, 185166, 267462, 277749, 401193, 555498, 802386, 833247, 1203579, 1666494, 2407158, 3610737, 7221474, 10832211, 21664422]

約数ペア:

[(1, 21664422), (2, 10832211), (3, 7221474), (6, 3610737), (9, 2407158), (13, 1666494), (18, 1203579), (26, 833247), (27, 802386), (39, 555498), (54, 401193), (78, 277749), (81, 267462), (117, 185166), (127, 170586), (162, 133731), (234, 92583), (243, 89154), (254, 85293), (351, 61722), (381, 56862), (486, 44577), (702, 30861), (729, 29718), (762, 28431), (1053, 20574), (1143, 18954), (1458, 14859), (1651, 13122), (2106, 10287), (2187, 9906), (2286, 9477), (3159, 6858), (3302, 6561), (3429, 6318), (4374, 4953)]