19835515

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 30238272

約数和(自身を除く): 10402757

約数列:

[1, 5, 7, 17, 35, 37, 53, 85, 119, 185, 259, 265, 289, 371, 595, 629, 901, 1295, 1445, 1855, 1961, 2023, 3145, 4403, 4505, 6307, 9805, 10115, 10693, 13727, 15317, 22015, 31535, 33337, 53465, 68635, 74851, 76585, 107219, 166685, 233359, 374255, 536095, 566729, 1166795, 2833645, 3967103, 19835515]

約数ペア:

[(1, 19835515), (5, 3967103), (7, 2833645), (17, 1166795), (35, 566729), (37, 536095), (53, 374255), (85, 233359), (119, 166685), (185, 107219), (259, 76585), (265, 74851), (289, 68635), (371, 53465), (595, 33337), (629, 31535), (901, 22015), (1295, 15317), (1445, 13727), (1855, 10693), (1961, 10115), (2023, 9805), (3145, 6307), (4403, 4505)]