21290202

素因数分解:

$2^1\times 3^5\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:705

約数の個数: 48

約数和(自身を含む): 48589632

約数和(自身を除く): 27299430

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 243, 426, 486, 617, 639, 1234, 1278, 1851, 1917, 3702, 3834, 5553, 5751, 11106, 11502, 16659, 17253, 33318, 34506, 43807, 49977, 87614, 99954, 131421, 149931, 262842, 299862, 394263, 788526, 1182789, 2365578, 3548367, 7096734, 10645101, 21290202]

約数ペア:

[(1, 21290202), (2, 10645101), (3, 7096734), (6, 3548367), (9, 2365578), (18, 1182789), (27, 788526), (54, 394263), (71, 299862), (81, 262842), (142, 149931), (162, 131421), (213, 99954), (243, 87614), (426, 49977), (486, 43807), (617, 34506), (639, 33318), (1234, 17253), (1278, 16659), (1851, 11502), (1917, 11106), (3702, 5751), (3834, 5553)]