18816948

素因数分解:

$2^2\times 3^9\times {\mathrm{239}}^1$

素因数の和:270

約数の個数: 60

約数和(自身を含む): 49600320

約数和(自身を除く): 30783372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 239, 243, 324, 478, 486, 717, 729, 956, 972, 1434, 1458, 2151, 2187, 2868, 2916, 4302, 4374, 6453, 6561, 8604, 8748, 12906, 13122, 19359, 19683, 25812, 26244, 38718, 39366, 58077, 77436, 78732, 116154, 174231, 232308, 348462, 522693, 696924, 1045386, 1568079, 2090772, 3136158, 4704237, 6272316, 9408474, 18816948]

約数ペア:

[(1, 18816948), (2, 9408474), (3, 6272316), (4, 4704237), (6, 3136158), (9, 2090772), (12, 1568079), (18, 1045386), (27, 696924), (36, 522693), (54, 348462), (81, 232308), (108, 174231), (162, 116154), (239, 78732), (243, 77436), (324, 58077), (478, 39366), (486, 38718), (717, 26244), (729, 25812), (956, 19683), (972, 19359), (1434, 13122), (1458, 12906), (2151, 8748), (2187, 8604), (2868, 6561), (2916, 6453), (4302, 4374)]