21119525

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 32855040

約数和(自身を除く): 11735515

約数列:

[1, 5, 7, 17, 25, 31, 35, 85, 119, 155, 175, 217, 229, 425, 527, 595, 775, 1085, 1145, 1603, 2635, 2975, 3689, 3893, 5425, 5725, 7099, 8015, 13175, 18445, 19465, 27251, 35495, 40075, 49693, 92225, 97325, 120683, 136255, 177475, 248465, 603415, 681275, 844781, 1242325, 3017075, 4223905, 21119525]

約数ペア:

[(1, 21119525), (5, 4223905), (7, 3017075), (17, 1242325), (25, 844781), (31, 681275), (35, 603415), (85, 248465), (119, 177475), (155, 136255), (175, 120683), (217, 97325), (229, 92225), (425, 49693), (527, 40075), (595, 35495), (775, 27251), (1085, 19465), (1145, 18445), (1603, 13175), (2635, 8015), (2975, 7099), (3689, 5725), (3893, 5425)]