21910280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4603}}^1$

素因数の和:4638

約数の個数: 64

約数和(自身を含む): 59667840

約数和(自身を除く): 37757560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4603, 4760, 9206, 18412, 23015, 32221, 36824, 46030, 64442, 78251, 92060, 128884, 156502, 161105, 184120, 257768, 313004, 322210, 391255, 547757, 626008, 644420, 782510, 1095514, 1288840, 1565020, 2191028, 2738785, 3130040, 4382056, 5477570, 10955140, 21910280]

約数ペア:

[(1, 21910280), (2, 10955140), (4, 5477570), (5, 4382056), (7, 3130040), (8, 2738785), (10, 2191028), (14, 1565020), (17, 1288840), (20, 1095514), (28, 782510), (34, 644420), (35, 626008), (40, 547757), (56, 391255), (68, 322210), (70, 313004), (85, 257768), (119, 184120), (136, 161105), (140, 156502), (170, 128884), (238, 92060), (280, 78251), (340, 64442), (476, 46030), (595, 36824), (680, 32221), (952, 23015), (1190, 18412), (2380, 9206), (4603, 4760)]