21288450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{347}}^1\times {\mathrm{409}}^1$

素因数の和:771

約数の個数: 48

約数和(自身を含む): 53076960

約数和(自身を除く): 31788510

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 347, 409, 694, 818, 1041, 1227, 1735, 2045, 2082, 2454, 3470, 4090, 5205, 6135, 8675, 10225, 10410, 12270, 17350, 20450, 26025, 30675, 52050, 61350, 141923, 283846, 425769, 709615, 851538, 1419230, 2128845, 3548075, 4257690, 7096150, 10644225, 21288450]

約数ペア:

[(1, 21288450), (2, 10644225), (3, 7096150), (5, 4257690), (6, 3548075), (10, 2128845), (15, 1419230), (25, 851538), (30, 709615), (50, 425769), (75, 283846), (150, 141923), (347, 61350), (409, 52050), (694, 30675), (818, 26025), (1041, 20450), (1227, 17350), (1735, 12270), (2045, 10410), (2082, 10225), (2454, 8675), (3470, 6135), (4090, 5205)]