19876252

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 40410720

約数和(自身を除く): 20534468

約数列:

[1, 2, 4, 11, 22, 29, 37, 44, 58, 74, 116, 148, 319, 407, 421, 638, 814, 842, 1073, 1276, 1628, 1684, 2146, 4292, 4631, 9262, 11803, 12209, 15577, 18524, 23606, 24418, 31154, 47212, 48836, 62308, 134299, 171347, 268598, 342694, 451733, 537196, 685388, 903466, 1806932, 4969063, 9938126, 19876252]

約数ペア:

[(1, 19876252), (2, 9938126), (4, 4969063), (11, 1806932), (22, 903466), (29, 685388), (37, 537196), (44, 451733), (58, 342694), (74, 268598), (116, 171347), (148, 134299), (319, 62308), (407, 48836), (421, 47212), (638, 31154), (814, 24418), (842, 23606), (1073, 18524), (1276, 15577), (1628, 12209), (1684, 11803), (2146, 9262), (4292, 4631)]