21498390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4507}}^1$

素因数の和:4573

約数の個数: 48

約数和(自身を含む): 56963088

約数和(自身を除く): 35464698

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 53, 90, 106, 159, 265, 318, 477, 530, 795, 954, 1590, 2385, 4507, 4770, 9014, 13521, 22535, 27042, 40563, 45070, 67605, 81126, 135210, 202815, 238871, 405630, 477742, 716613, 1194355, 1433226, 2149839, 2388710, 3583065, 4299678, 7166130, 10749195, 21498390]

約数ペア:

[(1, 21498390), (2, 10749195), (3, 7166130), (5, 4299678), (6, 3583065), (9, 2388710), (10, 2149839), (15, 1433226), (18, 1194355), (30, 716613), (45, 477742), (53, 405630), (90, 238871), (106, 202815), (159, 135210), (265, 81126), (318, 67605), (477, 45070), (530, 40563), (795, 27042), (954, 22535), (1590, 13521), (2385, 9014), (4507, 4770)]