21025476

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{521}}^1$

素因数の和:609

約数の個数: 72

約数和(自身を含む): 57002400

約数和(自身を除く): 35976924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 59, 76, 114, 118, 171, 177, 228, 236, 342, 354, 521, 531, 684, 708, 1042, 1062, 1121, 1563, 2084, 2124, 2242, 3126, 3363, 4484, 4689, 6252, 6726, 9378, 9899, 10089, 13452, 18756, 19798, 20178, 29697, 30739, 39596, 40356, 59394, 61478, 89091, 92217, 118788, 122956, 178182, 184434, 276651, 356364, 368868, 553302, 584041, 1106604, 1168082, 1752123, 2336164, 3504246, 5256369, 7008492, 10512738, 21025476]

約数ペア:

[(1, 21025476), (2, 10512738), (3, 7008492), (4, 5256369), (6, 3504246), (9, 2336164), (12, 1752123), (18, 1168082), (19, 1106604), (36, 584041), (38, 553302), (57, 368868), (59, 356364), (76, 276651), (114, 184434), (118, 178182), (171, 122956), (177, 118788), (228, 92217), (236, 89091), (342, 61478), (354, 59394), (521, 40356), (531, 39596), (684, 30739), (708, 29697), (1042, 20178), (1062, 19798), (1121, 18756), (1563, 13452), (2084, 10089), (2124, 9899), (2242, 9378), (3126, 6726), (3363, 6252), (4484, 4689)]