18991617921

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{167}}^1\times {\mathrm{125107}}^1$

素因数の和:125381

約数の個数: 24

約数和(自身を含む): 27870058944

約数和(自身を除く): 8878441023

約数列:

[1, 3, 9, 101, 167, 303, 501, 909, 1503, 16867, 50601, 125107, 151803, 375321, 1125963, 12635807, 20892869, 37907421, 62678607, 113722263, 188035821, 2110179769, 6330539307, 18991617921]

約数ペア:

[(1, 18991617921), (3, 6330539307), (9, 2110179769), (101, 188035821), (167, 113722263), (303, 62678607), (501, 37907421), (909, 20892869), (1503, 12635807), (16867, 1125963), (50601, 375321), (125107, 151803)]