21757788

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{15497}}^1$

素因数の和:15523

約数の個数: 48

約数和(自身を含む): 60752160

約数和(自身を除く): 38994372

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 15497, 30994, 46491, 61988, 92982, 139473, 185964, 201461, 278946, 402922, 418419, 557892, 604383, 805844, 836838, 1208766, 1673676, 1813149, 2417532, 3626298, 5439447, 7252596, 10878894, 21757788]

約数ペア:

[(1, 21757788), (2, 10878894), (3, 7252596), (4, 5439447), (6, 3626298), (9, 2417532), (12, 1813149), (13, 1673676), (18, 1208766), (26, 836838), (27, 805844), (36, 604383), (39, 557892), (52, 418419), (54, 402922), (78, 278946), (108, 201461), (117, 185964), (156, 139473), (234, 92982), (351, 61988), (468, 46491), (702, 30994), (1404, 15497)]