21859218610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{541}}^1\times {\mathrm{1951}}^1$

素因数の和:2627

約数の個数: 64

約数和(自身を含む): 41896166400

約数和(自身を除く): 20036947790

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 541, 545, 1082, 1090, 1951, 2071, 2705, 3902, 4142, 5410, 9755, 10279, 10355, 19510, 20558, 20710, 37069, 51395, 58969, 74138, 102790, 117938, 185345, 212659, 294845, 370690, 425318, 589690, 1055491, 1063295, 1120411, 2110982, 2126590, 2240822, 4040521, 5277455, 5602055, 8081042, 10554910, 11204110, 20054329, 20202605, 40108658, 40405210, 100271645, 115048519, 200543290, 230097038, 575242595, 1150485190, 2185921861, 4371843722, 10929609305, 21859218610]

約数ペア:

[(1, 21859218610), (2, 10929609305), (5, 4371843722), (10, 2185921861), (19, 1150485190), (38, 575242595), (95, 230097038), (109, 200543290), (190, 115048519), (218, 100271645), (541, 40405210), (545, 40108658), (1082, 20202605), (1090, 20054329), (1951, 11204110), (2071, 10554910), (2705, 8081042), (3902, 5602055), (4142, 5277455), (5410, 4040521), (9755, 2240822), (10279, 2126590), (10355, 2110982), (19510, 1120411), (20558, 1063295), (20710, 1055491), (37069, 589690), (51395, 425318), (58969, 370690), (74138, 294845), (102790, 212659), (117938, 185345)]