21552750

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 62300160

約数和(自身を除く): 40747410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 31, 45, 50, 54, 62, 75, 90, 93, 103, 125, 135, 150, 155, 186, 206, 225, 250, 270, 279, 309, 310, 375, 450, 465, 515, 558, 618, 675, 750, 775, 837, 927, 930, 1030, 1125, 1350, 1395, 1545, 1550, 1674, 1854, 2250, 2325, 2575, 2781, 2790, 3090, 3193, 3375, 3875, 4185, 4635, 4650, 5150, 5562, 6386, 6750, 6975, 7725, 7750, 8370, 9270, 9579, 11625, 12875, 13905, 13950, 15450, 15965, 19158, 20925, 23175, 23250, 25750, 27810, 28737, 31930, 34875, 38625, 41850, 46350, 47895, 57474, 69525, 69750, 77250, 79825, 86211, 95790, 104625, 115875, 139050, 143685, 159650, 172422, 209250, 231750, 239475, 287370, 347625, 399125, 431055, 478950, 695250, 718425, 798250, 862110, 1197375, 1436850, 2155275, 2394750, 3592125, 4310550, 7184250, 10776375, 21552750]

約数ペア:

[(1, 21552750), (2, 10776375), (3, 7184250), (5, 4310550), (6, 3592125), (9, 2394750), (10, 2155275), (15, 1436850), (18, 1197375), (25, 862110), (27, 798250), (30, 718425), (31, 695250), (45, 478950), (50, 431055), (54, 399125), (62, 347625), (75, 287370), (90, 239475), (93, 231750), (103, 209250), (125, 172422), (135, 159650), (150, 143685), (155, 139050), (186, 115875), (206, 104625), (225, 95790), (250, 86211), (270, 79825), (279, 77250), (309, 69750), (310, 69525), (375, 57474), (450, 47895), (465, 46350), (515, 41850), (558, 38625), (618, 34875), (675, 31930), (750, 28737), (775, 27810), (837, 25750), (927, 23250), (930, 23175), (1030, 20925), (1125, 19158), (1350, 15965), (1395, 15450), (1545, 13950), (1550, 13905), (1674, 12875), (1854, 11625), (2250, 9579), (2325, 9270), (2575, 8370), (2781, 7750), (2790, 7725), (3090, 6975), (3193, 6750), (3375, 6386), (3875, 5562), (4185, 5150), (4635, 4650)]