21999762

素因数分解:

$2^1\times 3^6\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 56

約数和(自身を含む): 50365440

約数和(自身を除く): 28365678

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 81, 158, 162, 191, 237, 243, 382, 474, 486, 573, 711, 729, 1146, 1422, 1458, 1719, 2133, 3438, 4266, 5157, 6399, 10314, 12798, 15089, 15471, 19197, 30178, 30942, 38394, 45267, 46413, 57591, 90534, 92826, 115182, 135801, 139239, 271602, 278478, 407403, 814806, 1222209, 2444418, 3666627, 7333254, 10999881, 21999762]

約数ペア:

[(1, 21999762), (2, 10999881), (3, 7333254), (6, 3666627), (9, 2444418), (18, 1222209), (27, 814806), (54, 407403), (79, 278478), (81, 271602), (158, 139239), (162, 135801), (191, 115182), (237, 92826), (243, 90534), (382, 57591), (474, 46413), (486, 45267), (573, 38394), (711, 30942), (729, 30178), (1146, 19197), (1422, 15471), (1458, 15089), (1719, 12798), (2133, 10314), (3438, 6399), (4266, 5157)]