21554550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2521}}^1$

素因数の和:2558

約数の個数: 72

約数和(自身を含む): 60981960

約数和(自身を除く): 39427410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 38, 45, 50, 57, 75, 90, 95, 114, 150, 171, 190, 225, 285, 342, 450, 475, 570, 855, 950, 1425, 1710, 2521, 2850, 4275, 5042, 7563, 8550, 12605, 15126, 22689, 25210, 37815, 45378, 47899, 63025, 75630, 95798, 113445, 126050, 143697, 189075, 226890, 239495, 287394, 378150, 431091, 478990, 567225, 718485, 862182, 1134450, 1197475, 1436970, 2155455, 2394950, 3592425, 4310910, 7184850, 10777275, 21554550]

約数ペア:

[(1, 21554550), (2, 10777275), (3, 7184850), (5, 4310910), (6, 3592425), (9, 2394950), (10, 2155455), (15, 1436970), (18, 1197475), (19, 1134450), (25, 862182), (30, 718485), (38, 567225), (45, 478990), (50, 431091), (57, 378150), (75, 287394), (90, 239495), (95, 226890), (114, 189075), (150, 143697), (171, 126050), (190, 113445), (225, 95798), (285, 75630), (342, 63025), (450, 47899), (475, 45378), (570, 37815), (855, 25210), (950, 22689), (1425, 15126), (1710, 12605), (2521, 8550), (2850, 7563), (4275, 5042)]