21995130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 55738368

約数和(自身を除く): 33743238

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 127, 138, 230, 251, 254, 345, 381, 502, 635, 690, 753, 762, 1255, 1270, 1506, 1905, 2510, 2921, 3765, 3810, 5773, 5842, 7530, 8763, 11546, 14605, 17319, 17526, 28865, 29210, 31877, 34638, 43815, 57730, 63754, 86595, 87630, 95631, 159385, 173190, 191262, 318770, 478155, 733171, 956310, 1466342, 2199513, 3665855, 4399026, 7331710, 10997565, 21995130]

約数ペア:

[(1, 21995130), (2, 10997565), (3, 7331710), (5, 4399026), (6, 3665855), (10, 2199513), (15, 1466342), (23, 956310), (30, 733171), (46, 478155), (69, 318770), (115, 191262), (127, 173190), (138, 159385), (230, 95631), (251, 87630), (254, 86595), (345, 63754), (381, 57730), (502, 43815), (635, 34638), (690, 31877), (753, 29210), (762, 28865), (1255, 17526), (1270, 17319), (1506, 14605), (1905, 11546), (2510, 8763), (2921, 7530), (3765, 5842), (3810, 5773)]