21809910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{461}}^1$

素因数の和:573

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 34073610

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 83, 95, 114, 166, 190, 249, 285, 415, 461, 498, 570, 830, 922, 1245, 1383, 1577, 2305, 2490, 2766, 3154, 4610, 4731, 6915, 7885, 8759, 9462, 13830, 15770, 17518, 23655, 26277, 38263, 43795, 47310, 52554, 76526, 87590, 114789, 131385, 191315, 229578, 262770, 382630, 573945, 726997, 1147890, 1453994, 2180991, 3634985, 4361982, 7269970, 10904955, 21809910]

約数ペア:

[(1, 21809910), (2, 10904955), (3, 7269970), (5, 4361982), (6, 3634985), (10, 2180991), (15, 1453994), (19, 1147890), (30, 726997), (38, 573945), (57, 382630), (83, 262770), (95, 229578), (114, 191315), (166, 131385), (190, 114789), (249, 87590), (285, 76526), (415, 52554), (461, 47310), (498, 43795), (570, 38263), (830, 26277), (922, 23655), (1245, 17518), (1383, 15770), (1577, 13830), (2305, 9462), (2490, 8759), (2766, 7885), (3154, 6915), (4610, 4731)]