20996550

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 58805760

約数和(自身を除く): 37809210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 90, 103, 135, 150, 151, 206, 225, 270, 302, 309, 450, 453, 515, 618, 675, 755, 906, 927, 1030, 1350, 1359, 1510, 1545, 1854, 2265, 2575, 2718, 2781, 3090, 3775, 4077, 4530, 4635, 5150, 5562, 6795, 7550, 7725, 8154, 9270, 11325, 13590, 13905, 15450, 15553, 20385, 22650, 23175, 27810, 31106, 33975, 40770, 46350, 46659, 67950, 69525, 77765, 93318, 101925, 139050, 139977, 155530, 203850, 233295, 279954, 388825, 419931, 466590, 699885, 777650, 839862, 1166475, 1399770, 2099655, 2332950, 3499425, 4199310, 6998850, 10498275, 20996550]

約数ペア:

[(1, 20996550), (2, 10498275), (3, 6998850), (5, 4199310), (6, 3499425), (9, 2332950), (10, 2099655), (15, 1399770), (18, 1166475), (25, 839862), (27, 777650), (30, 699885), (45, 466590), (50, 419931), (54, 388825), (75, 279954), (90, 233295), (103, 203850), (135, 155530), (150, 139977), (151, 139050), (206, 101925), (225, 93318), (270, 77765), (302, 69525), (309, 67950), (450, 46659), (453, 46350), (515, 40770), (618, 33975), (675, 31106), (755, 27810), (906, 23175), (927, 22650), (1030, 20385), (1350, 15553), (1359, 15450), (1510, 13905), (1545, 13590), (1854, 11325), (2265, 9270), (2575, 8154), (2718, 7725), (2781, 7550), (3090, 6795), (3775, 5562), (4077, 5150), (4530, 4635)]