19904892

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:347

約数の個数: 96

約数和(自身を含む): 57480192

約数和(自身を除く): 37575300

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 53, 68, 84, 102, 106, 119, 159, 204, 212, 238, 263, 318, 357, 371, 476, 526, 636, 714, 742, 789, 901, 1052, 1113, 1428, 1484, 1578, 1802, 1841, 2226, 2703, 3156, 3604, 3682, 4452, 4471, 5406, 5523, 6307, 7364, 8942, 10812, 11046, 12614, 13413, 13939, 17884, 18921, 22092, 25228, 26826, 27878, 31297, 37842, 41817, 53652, 55756, 62594, 75684, 83634, 93891, 97573, 125188, 167268, 187782, 195146, 236963, 292719, 375564, 390292, 473926, 585438, 710889, 947852, 1170876, 1421778, 1658741, 2843556, 3317482, 4976223, 6634964, 9952446, 19904892]

約数ペア:

[(1, 19904892), (2, 9952446), (3, 6634964), (4, 4976223), (6, 3317482), (7, 2843556), (12, 1658741), (14, 1421778), (17, 1170876), (21, 947852), (28, 710889), (34, 585438), (42, 473926), (51, 390292), (53, 375564), (68, 292719), (84, 236963), (102, 195146), (106, 187782), (119, 167268), (159, 125188), (204, 97573), (212, 93891), (238, 83634), (263, 75684), (318, 62594), (357, 55756), (371, 53652), (476, 41817), (526, 37842), (636, 31297), (714, 27878), (742, 26826), (789, 25228), (901, 22092), (1052, 18921), (1113, 17884), (1428, 13939), (1484, 13413), (1578, 12614), (1802, 11046), (1841, 10812), (2226, 8942), (2703, 7364), (3156, 6307), (3604, 5523), (3682, 5406), (4452, 4471)]