21580468

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{587}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 47021184

約数和(自身を除く): 25440716

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 101, 182, 202, 364, 404, 587, 707, 1174, 1313, 1414, 2348, 2626, 2828, 4109, 5252, 7631, 8218, 9191, 15262, 16436, 18382, 30524, 36764, 53417, 59287, 106834, 118574, 213668, 237148, 415009, 770731, 830018, 1541462, 1660036, 3082924, 5395117, 10790234, 21580468]

約数ペア:

[(1, 21580468), (2, 10790234), (4, 5395117), (7, 3082924), (13, 1660036), (14, 1541462), (26, 830018), (28, 770731), (52, 415009), (91, 237148), (101, 213668), (182, 118574), (202, 106834), (364, 59287), (404, 53417), (587, 36764), (707, 30524), (1174, 18382), (1313, 16436), (1414, 15262), (2348, 9191), (2626, 8218), (2828, 7631), (4109, 5252)]