21001120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1103}}^1$

素因数の和:1142

約数の個数: 96

約数和(自身を含む): 60092928

約数和(自身を除く): 39091808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 340, 476, 544, 560, 595, 680, 952, 1103, 1120, 1190, 1360, 1904, 2206, 2380, 2720, 3808, 4412, 4760, 5515, 7721, 8824, 9520, 11030, 15442, 17648, 18751, 19040, 22060, 30884, 35296, 37502, 38605, 44120, 61768, 75004, 77210, 88240, 93755, 123536, 131257, 150008, 154420, 176480, 187510, 247072, 262514, 300016, 308840, 375020, 525028, 600032, 617680, 656285, 750040, 1050056, 1235360, 1312570, 1500080, 2100112, 2625140, 3000160, 4200224, 5250280, 10500560, 21001120]

約数ペア:

[(1, 21001120), (2, 10500560), (4, 5250280), (5, 4200224), (7, 3000160), (8, 2625140), (10, 2100112), (14, 1500080), (16, 1312570), (17, 1235360), (20, 1050056), (28, 750040), (32, 656285), (34, 617680), (35, 600032), (40, 525028), (56, 375020), (68, 308840), (70, 300016), (80, 262514), (85, 247072), (112, 187510), (119, 176480), (136, 154420), (140, 150008), (160, 131257), (170, 123536), (224, 93755), (238, 88240), (272, 77210), (280, 75004), (340, 61768), (476, 44120), (544, 38605), (560, 37502), (595, 35296), (680, 30884), (952, 22060), (1103, 19040), (1120, 18751), (1190, 17648), (1360, 15442), (1904, 11030), (2206, 9520), (2380, 8824), (2720, 7721), (3808, 5515), (4412, 4760)]