674380623

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{2557}}^1$

素因数の和:3247

約数の個数: 32

約数和(自身を含む): 1083773440

約数和(自身を除く): 409392817

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 661, 1983, 2557, 4627, 7671, 12559, 13881, 17899, 37677, 48583, 53697, 87913, 145749, 263739, 340081, 1020243, 1690177, 5070531, 11831239, 32113363, 35493717, 96340089, 224793541, 674380623]

約数ペア:

[(1, 674380623), (3, 224793541), (7, 96340089), (19, 35493717), (21, 32113363), (57, 11831239), (133, 5070531), (399, 1690177), (661, 1020243), (1983, 340081), (2557, 263739), (4627, 145749), (7671, 87913), (12559, 53697), (13881, 48583), (17899, 37677)]