21086550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1062

約数の個数: 72

約数和(自身を含む): 57915936

約数和(自身を除く): 36829386

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 47, 50, 75, 90, 94, 141, 150, 225, 235, 282, 423, 450, 470, 705, 846, 997, 1175, 1410, 1994, 2115, 2350, 2991, 3525, 4230, 4985, 5982, 7050, 8973, 9970, 10575, 14955, 17946, 21150, 24925, 29910, 44865, 46859, 49850, 74775, 89730, 93718, 140577, 149550, 224325, 234295, 281154, 421731, 448650, 468590, 702885, 843462, 1171475, 1405770, 2108655, 2342950, 3514425, 4217310, 7028850, 10543275, 21086550]

約数ペア:

[(1, 21086550), (2, 10543275), (3, 7028850), (5, 4217310), (6, 3514425), (9, 2342950), (10, 2108655), (15, 1405770), (18, 1171475), (25, 843462), (30, 702885), (45, 468590), (47, 448650), (50, 421731), (75, 281154), (90, 234295), (94, 224325), (141, 149550), (150, 140577), (225, 93718), (235, 89730), (282, 74775), (423, 49850), (450, 46859), (470, 44865), (705, 29910), (846, 24925), (997, 21150), (1175, 17946), (1410, 14955), (1994, 10575), (2115, 9970), (2350, 8973), (2991, 7050), (3525, 5982), (4230, 4985)]