21086160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{853}}^1$

素因数の和:972

約数の個数: 80

約数和(自身を含む): 66079104

約数和(自身を除く): 44992944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 103, 120, 206, 240, 309, 412, 515, 618, 824, 853, 1030, 1236, 1545, 1648, 1706, 2060, 2472, 2559, 3090, 3412, 4120, 4265, 4944, 5118, 6180, 6824, 8240, 8530, 10236, 12360, 12795, 13648, 17060, 20472, 24720, 25590, 34120, 40944, 51180, 68240, 87859, 102360, 175718, 204720, 263577, 351436, 439295, 527154, 702872, 878590, 1054308, 1317885, 1405744, 1757180, 2108616, 2635770, 3514360, 4217232, 5271540, 7028720, 10543080, 21086160]

約数ペア:

[(1, 21086160), (2, 10543080), (3, 7028720), (4, 5271540), (5, 4217232), (6, 3514360), (8, 2635770), (10, 2108616), (12, 1757180), (15, 1405744), (16, 1317885), (20, 1054308), (24, 878590), (30, 702872), (40, 527154), (48, 439295), (60, 351436), (80, 263577), (103, 204720), (120, 175718), (206, 102360), (240, 87859), (309, 68240), (412, 51180), (515, 40944), (618, 34120), (824, 25590), (853, 24720), (1030, 20472), (1236, 17060), (1545, 13648), (1648, 12795), (1706, 12360), (2060, 10236), (2472, 8530), (2559, 8240), (3090, 6824), (3412, 6180), (4120, 5118), (4265, 4944)]