209901426

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{307}}^1$

素因数の和:615

約数の個数: 64

約数和(自身を含む): 490119168

約数和(自身を除く): 280217742

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 73, 146, 219, 223, 307, 438, 446, 511, 614, 669, 921, 1022, 1338, 1533, 1561, 1842, 2149, 3066, 3122, 4298, 4683, 6447, 9366, 12894, 16279, 22411, 32558, 44822, 48837, 67233, 68461, 97674, 113953, 134466, 136922, 156877, 205383, 227906, 313754, 341859, 410766, 470631, 479227, 683718, 941262, 958454, 1437681, 2875362, 4997653, 9995306, 14992959, 29985918, 34983571, 69967142, 104950713, 209901426]

約数ペア:

[(1, 209901426), (2, 104950713), (3, 69967142), (6, 34983571), (7, 29985918), (14, 14992959), (21, 9995306), (42, 4997653), (73, 2875362), (146, 1437681), (219, 958454), (223, 941262), (307, 683718), (438, 479227), (446, 470631), (511, 410766), (614, 341859), (669, 313754), (921, 227906), (1022, 205383), (1338, 156877), (1533, 136922), (1561, 134466), (1842, 113953), (2149, 97674), (3066, 68461), (3122, 67233), (4298, 48837), (4683, 44822), (6447, 32558), (9366, 22411), (12894, 16279)]