21021962

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15266038

約数列:

[1, 2, 13, 17, 26, 34, 199, 221, 239, 398, 442, 478, 2587, 3107, 3383, 4063, 5174, 6214, 6766, 8126, 43979, 47561, 52819, 87958, 95122, 105638, 618293, 808537, 1236586, 1617074, 10510981, 21021962]

約数ペア:

[(1, 21021962), (2, 10510981), (13, 1617074), (17, 1236586), (26, 808537), (34, 618293), (199, 105638), (221, 95122), (239, 87958), (398, 52819), (442, 47561), (478, 43979), (2587, 8126), (3107, 6766), (3383, 6214), (4063, 5174)]