21696950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{383}}^1$

素因数の和:509

約数の個数: 48

約数和(自身を含む): 44568576

約数和(自身を除く): 22871626

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 103, 110, 206, 275, 383, 515, 550, 766, 1030, 1133, 1915, 2266, 2575, 3830, 4213, 5150, 5665, 8426, 9575, 11330, 19150, 21065, 28325, 39449, 42130, 56650, 78898, 105325, 197245, 210650, 394490, 433939, 867878, 986225, 1972450, 2169695, 4339390, 10848475, 21696950]

約数ペア:

[(1, 21696950), (2, 10848475), (5, 4339390), (10, 2169695), (11, 1972450), (22, 986225), (25, 867878), (50, 433939), (55, 394490), (103, 210650), (110, 197245), (206, 105325), (275, 78898), (383, 56650), (515, 42130), (550, 39449), (766, 28325), (1030, 21065), (1133, 19150), (1915, 11330), (2266, 9575), (2575, 8426), (3830, 5665), (4213, 5150)]