21560420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9059}}^1$

素因数の和:9092

約数の個数: 48

約数和(自身を含む): 54794880

約数和(自身を除く): 33234460

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 9059, 18118, 36236, 45295, 63413, 90590, 126826, 154003, 181180, 253652, 308006, 317065, 616012, 634130, 770015, 1078021, 1268260, 1540030, 2156042, 3080060, 4312084, 5390105, 10780210, 21560420]

約数ペア:

[(1, 21560420), (2, 10780210), (4, 5390105), (5, 4312084), (7, 3080060), (10, 2156042), (14, 1540030), (17, 1268260), (20, 1078021), (28, 770015), (34, 634130), (35, 616012), (68, 317065), (70, 308006), (85, 253652), (119, 181180), (140, 154003), (170, 126826), (238, 90590), (340, 63413), (476, 45295), (595, 36236), (1190, 18118), (2380, 9059)]