21333460

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 46577664

約数和(自身を除く): 25244204

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 127, 148, 185, 227, 254, 370, 454, 508, 635, 740, 908, 1135, 1270, 2270, 2540, 4540, 4699, 8399, 9398, 16798, 18796, 23495, 28829, 33596, 41995, 46990, 57658, 83990, 93980, 115316, 144145, 167980, 288290, 576580, 1066673, 2133346, 4266692, 5333365, 10666730, 21333460]

約数ペア:

[(1, 21333460), (2, 10666730), (4, 5333365), (5, 4266692), (10, 2133346), (20, 1066673), (37, 576580), (74, 288290), (127, 167980), (148, 144145), (185, 115316), (227, 93980), (254, 83990), (370, 57658), (454, 46990), (508, 41995), (635, 33596), (740, 28829), (908, 23495), (1135, 18796), (1270, 16798), (2270, 9398), (2540, 8399), (4540, 4699)]