19880244

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{13469}}^1$

素因数の和:13520

約数の個数: 36

約数和(自身を含む): 51482340

約数和(自身を除く): 31602096

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 738, 1476, 13469, 26938, 40407, 53876, 80814, 121221, 161628, 242442, 484884, 552229, 1104458, 1656687, 2208916, 3313374, 4970061, 6626748, 9940122, 19880244]

約数ペア:

[(1, 19880244), (2, 9940122), (3, 6626748), (4, 4970061), (6, 3313374), (9, 2208916), (12, 1656687), (18, 1104458), (36, 552229), (41, 484884), (82, 242442), (123, 161628), (164, 121221), (246, 80814), (369, 53876), (492, 40407), (738, 26938), (1476, 13469)]