21354228

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:957

約数の個数: 72

約数和(自身を含む): 62375040

約数和(自身を除く): 41020812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 101, 126, 202, 252, 303, 404, 606, 707, 839, 909, 1212, 1414, 1678, 1818, 2121, 2517, 2828, 3356, 3636, 4242, 5034, 5873, 6363, 7551, 8484, 10068, 11746, 12726, 15102, 17619, 23492, 25452, 30204, 35238, 52857, 70476, 84739, 105714, 169478, 211428, 254217, 338956, 508434, 593173, 762651, 1016868, 1186346, 1525302, 1779519, 2372692, 3050604, 3559038, 5338557, 7118076, 10677114, 21354228]

約数ペア:

[(1, 21354228), (2, 10677114), (3, 7118076), (4, 5338557), (6, 3559038), (7, 3050604), (9, 2372692), (12, 1779519), (14, 1525302), (18, 1186346), (21, 1016868), (28, 762651), (36, 593173), (42, 508434), (63, 338956), (84, 254217), (101, 211428), (126, 169478), (202, 105714), (252, 84739), (303, 70476), (404, 52857), (606, 35238), (707, 30204), (839, 25452), (909, 23492), (1212, 17619), (1414, 15102), (1678, 12726), (1818, 11746), (2121, 10068), (2517, 8484), (2828, 7551), (3356, 6363), (3636, 5873), (4242, 5034)]