15781172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 32524800

約数和(自身を除く): 16743628

約数列:

[1, 2, 4, 11, 19, 22, 38, 43, 44, 76, 86, 172, 209, 418, 439, 473, 817, 836, 878, 946, 1634, 1756, 1892, 3268, 4829, 8341, 8987, 9658, 16682, 17974, 18877, 19316, 33364, 35948, 37754, 75508, 91751, 183502, 207647, 358663, 367004, 415294, 717326, 830588, 1434652, 3945293, 7890586, 15781172]

約数ペア:

[(1, 15781172), (2, 7890586), (4, 3945293), (11, 1434652), (19, 830588), (22, 717326), (38, 415294), (43, 367004), (44, 358663), (76, 207647), (86, 183502), (172, 91751), (209, 75508), (418, 37754), (439, 35948), (473, 33364), (817, 19316), (836, 18877), (878, 17974), (946, 16682), (1634, 9658), (1756, 8987), (1892, 8341), (3268, 4829)]