19953228

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 47990880

約数和(自身を除く): 28037652

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 137, 159, 212, 229, 274, 318, 411, 458, 548, 636, 687, 822, 916, 1374, 1644, 2748, 7261, 12137, 14522, 21783, 24274, 29044, 31373, 36411, 43566, 48548, 62746, 72822, 87132, 94119, 125492, 145644, 188238, 376476, 1662769, 3325538, 4988307, 6651076, 9976614, 19953228]

約数ペア:

[(1, 19953228), (2, 9976614), (3, 6651076), (4, 4988307), (6, 3325538), (12, 1662769), (53, 376476), (106, 188238), (137, 145644), (159, 125492), (212, 94119), (229, 87132), (274, 72822), (318, 62746), (411, 48548), (458, 43566), (548, 36411), (636, 31373), (687, 29044), (822, 24274), (916, 21783), (1374, 14522), (1644, 12137), (2748, 7261)]