1961715

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 3890592

約数和(自身を除く): 1928877

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 157, 245, 255, 357, 471, 595, 735, 785, 833, 1099, 1785, 2355, 2499, 2669, 3297, 4165, 5495, 7693, 8007, 12495, 13345, 16485, 18683, 23079, 38465, 40035, 56049, 93415, 115395, 130781, 280245, 392343, 653905, 1961715]

約数ペア:

[(1, 1961715), (3, 653905), (5, 392343), (7, 280245), (15, 130781), (17, 115395), (21, 93415), (35, 56049), (49, 40035), (51, 38465), (85, 23079), (105, 18683), (119, 16485), (147, 13345), (157, 12495), (245, 8007), (255, 7693), (357, 5495), (471, 4165), (595, 3297), (735, 2669), (785, 2499), (833, 2355), (1099, 1785)]