20843172

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{773}}^1$

素因数の和:897

約数の個数: 72

約数和(自身を含む): 60854976

約数和(自身を除く): 40011804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 107, 126, 214, 252, 321, 428, 642, 749, 773, 963, 1284, 1498, 1546, 1926, 2247, 2319, 2996, 3092, 3852, 4494, 4638, 5411, 6741, 6957, 8988, 9276, 10822, 13482, 13914, 16233, 21644, 26964, 27828, 32466, 48699, 64932, 82711, 97398, 165422, 194796, 248133, 330844, 496266, 578977, 744399, 992532, 1157954, 1488798, 1736931, 2315908, 2977596, 3473862, 5210793, 6947724, 10421586, 20843172]

約数ペア:

[(1, 20843172), (2, 10421586), (3, 6947724), (4, 5210793), (6, 3473862), (7, 2977596), (9, 2315908), (12, 1736931), (14, 1488798), (18, 1157954), (21, 992532), (28, 744399), (36, 578977), (42, 496266), (63, 330844), (84, 248133), (107, 194796), (126, 165422), (214, 97398), (252, 82711), (321, 64932), (428, 48699), (642, 32466), (749, 27828), (773, 26964), (963, 21644), (1284, 16233), (1498, 13914), (1546, 13482), (1926, 10822), (2247, 9276), (2319, 8988), (2996, 6957), (3092, 6741), (3852, 5411), (4494, 4638)]