20210371285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{329723}}^1$

素因数の和:329805

約数の個数: 32

約数和(自身を含む): 27918390528

約数和(自身を除く): 7708019243

約数列:

[1, 5, 13, 23, 41, 65, 115, 205, 299, 533, 943, 1495, 2665, 4715, 12259, 61295, 329723, 1648615, 4286399, 7583629, 13518643, 21431995, 37918145, 67593215, 98587177, 175742359, 310928789, 492935885, 878711795, 1554643945, 4042074257, 20210371285]

約数ペア:

[(1, 20210371285), (5, 4042074257), (13, 1554643945), (23, 878711795), (41, 492935885), (65, 310928789), (115, 175742359), (205, 98587177), (299, 67593215), (533, 37918145), (943, 21431995), (1495, 13518643), (2665, 7583629), (4715, 4286399), (12259, 1648615), (61295, 329723)]