21695868

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 56963088

約数和(自身を除く): 35267220

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 83, 106, 137, 159, 166, 212, 249, 274, 318, 332, 411, 477, 498, 548, 636, 747, 822, 954, 996, 1233, 1494, 1644, 1908, 2466, 2988, 4399, 4932, 7261, 8798, 11371, 13197, 14522, 17596, 21783, 22742, 26394, 29044, 34113, 39591, 43566, 45484, 52788, 65349, 68226, 79182, 87132, 102339, 130698, 136452, 158364, 204678, 261396, 409356, 602663, 1205326, 1807989, 2410652, 3615978, 5423967, 7231956, 10847934, 21695868]

約数ペア:

[(1, 21695868), (2, 10847934), (3, 7231956), (4, 5423967), (6, 3615978), (9, 2410652), (12, 1807989), (18, 1205326), (36, 602663), (53, 409356), (83, 261396), (106, 204678), (137, 158364), (159, 136452), (166, 130698), (212, 102339), (249, 87132), (274, 79182), (318, 68226), (332, 65349), (411, 52788), (477, 45484), (498, 43566), (548, 39591), (636, 34113), (747, 29044), (822, 26394), (954, 22742), (996, 21783), (1233, 17596), (1494, 14522), (1644, 13197), (1908, 11371), (2466, 8798), (2988, 7261), (4399, 4932)]