21177612

素因数分解:

$2^2\times 3^4\times {\mathrm{163}}^1\times {\mathrm{401}}^1$

素因数の和:580

約数の個数: 60

約数和(自身を含む): 55841016

約数和(自身を除く): 34663404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 163, 324, 326, 401, 489, 652, 802, 978, 1203, 1467, 1604, 1956, 2406, 2934, 3609, 4401, 4812, 5868, 7218, 8802, 10827, 13203, 14436, 17604, 21654, 26406, 32481, 43308, 52812, 64962, 65363, 129924, 130726, 196089, 261452, 392178, 588267, 784356, 1176534, 1764801, 2353068, 3529602, 5294403, 7059204, 10588806, 21177612]

約数ペア:

[(1, 21177612), (2, 10588806), (3, 7059204), (4, 5294403), (6, 3529602), (9, 2353068), (12, 1764801), (18, 1176534), (27, 784356), (36, 588267), (54, 392178), (81, 261452), (108, 196089), (162, 130726), (163, 129924), (324, 65363), (326, 64962), (401, 52812), (489, 43308), (652, 32481), (802, 26406), (978, 21654), (1203, 17604), (1467, 14436), (1604, 13203), (1956, 10827), (2406, 8802), (2934, 7218), (3609, 5868), (4401, 4812)]