21625156

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 46230912

約数和(自身を除く): 24605756

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 181, 238, 251, 362, 476, 502, 724, 1004, 1267, 1757, 2534, 3077, 3514, 4267, 5068, 6154, 7028, 8534, 12308, 17068, 21539, 29869, 43078, 45431, 59738, 86156, 90862, 119476, 181724, 318017, 636034, 772327, 1272068, 1544654, 3089308, 5406289, 10812578, 21625156]

約数ペア:

[(1, 21625156), (2, 10812578), (4, 5406289), (7, 3089308), (14, 1544654), (17, 1272068), (28, 772327), (34, 636034), (68, 318017), (119, 181724), (181, 119476), (238, 90862), (251, 86156), (362, 59738), (476, 45431), (502, 43078), (724, 29869), (1004, 21539), (1267, 17068), (1757, 12308), (2534, 8534), (3077, 7028), (3514, 6154), (4267, 5068)]