21491394

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3557}}^1$

素因数の和:3634

約数の個数: 32

約数和(自身を含む): 46111680

約数和(自身を除く): 24620286

約数列:

[1, 2, 3, 6, 19, 38, 53, 57, 106, 114, 159, 318, 1007, 2014, 3021, 3557, 6042, 7114, 10671, 21342, 67583, 135166, 188521, 202749, 377042, 405498, 565563, 1131126, 3581899, 7163798, 10745697, 21491394]

約数ペア:

[(1, 21491394), (2, 10745697), (3, 7163798), (6, 3581899), (19, 1131126), (38, 565563), (53, 405498), (57, 377042), (106, 202749), (114, 188521), (159, 135166), (318, 67583), (1007, 21342), (2014, 10671), (3021, 7114), (3557, 6042)]