20852085

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 34312320

約数和(自身を除く): 13460235

約数列:

[1, 3, 5, 15, 73, 137, 139, 219, 365, 411, 417, 685, 695, 1095, 2055, 2085, 10001, 10147, 19043, 30003, 30441, 50005, 50735, 57129, 95215, 150015, 152205, 285645, 1390139, 4170417, 6950695, 20852085]

約数ペア:

[(1, 20852085), (3, 6950695), (5, 4170417), (15, 1390139), (73, 285645), (137, 152205), (139, 150015), (219, 95215), (365, 57129), (411, 50735), (417, 50005), (685, 30441), (695, 30003), (1095, 19043), (2055, 10147), (2085, 10001)]