21914372

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 42705600

約数和(自身を除く): 20791228

約数列:

[1, 2, 4, 19, 29, 38, 58, 61, 76, 116, 122, 163, 244, 326, 551, 652, 1102, 1159, 1769, 2204, 2318, 3097, 3538, 4636, 4727, 6194, 7076, 9454, 9943, 12388, 18908, 19886, 33611, 39772, 67222, 89813, 134444, 179626, 188917, 288347, 359252, 377834, 576694, 755668, 1153388, 5478593, 10957186, 21914372]

約数ペア:

[(1, 21914372), (2, 10957186), (4, 5478593), (19, 1153388), (29, 755668), (38, 576694), (58, 377834), (61, 359252), (76, 288347), (116, 188917), (122, 179626), (163, 134444), (244, 89813), (326, 67222), (551, 39772), (652, 33611), (1102, 19886), (1159, 18908), (1769, 12388), (2204, 9943), (2318, 9454), (3097, 7076), (3538, 6194), (4636, 4727)]