21913164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6689}}^1$

素因数の和:6719

約数の個数: 72

約数和(自身を含む): 68184480

約数和(自身を除く): 46271316

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6689, 13378, 20067, 26756, 40134, 46823, 60201, 80268, 86957, 93646, 120402, 140469, 173914, 187292, 240804, 260871, 280938, 347828, 421407, 521742, 561876, 608699, 782613, 842814, 1043484, 1217398, 1565226, 1685628, 1826097, 2434796, 3130452, 3652194, 5478291, 7304388, 10956582, 21913164]

約数ペア:

[(1, 21913164), (2, 10956582), (3, 7304388), (4, 5478291), (6, 3652194), (7, 3130452), (9, 2434796), (12, 1826097), (13, 1685628), (14, 1565226), (18, 1217398), (21, 1043484), (26, 842814), (28, 782613), (36, 608699), (39, 561876), (42, 521742), (52, 421407), (63, 347828), (78, 280938), (84, 260871), (91, 240804), (117, 187292), (126, 173914), (156, 140469), (182, 120402), (234, 93646), (252, 86957), (273, 80268), (364, 60201), (468, 46823), (546, 40134), (819, 26756), (1092, 20067), (1638, 13378), (3276, 6689)]