201191991

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1$

素因数の和:621

約数の個数: 96

約数和(自身を含む): 388862208

約数和(自身を除く): 187670217

約数列:

[1, 3, 7, 11, 13, 17, 21, 33, 39, 49, 51, 77, 91, 119, 143, 147, 187, 221, 231, 273, 357, 429, 539, 561, 563, 637, 663, 833, 1001, 1309, 1547, 1617, 1689, 1911, 2431, 2499, 3003, 3927, 3941, 4641, 6193, 7007, 7293, 7319, 9163, 9571, 10829, 11823, 17017, 18579, 21021, 21957, 27489, 27587, 28713, 32487, 43351, 51051, 51233, 66997, 80509, 82761, 105281, 119119, 124423, 130053, 153699, 200991, 241527, 303457, 315843, 357357, 358631, 373269, 468979, 563563, 736967, 870961, 910371, 1075893, 1368653, 1406937, 1690689, 2210901, 2612883, 3944941, 4105959, 5158769, 6096727, 9580571, 11834823, 15476307, 18290181, 28741713, 67063997, 201191991]

約数ペア:

[(1, 201191991), (3, 67063997), (7, 28741713), (11, 18290181), (13, 15476307), (17, 11834823), (21, 9580571), (33, 6096727), (39, 5158769), (49, 4105959), (51, 3944941), (77, 2612883), (91, 2210901), (119, 1690689), (143, 1406937), (147, 1368653), (187, 1075893), (221, 910371), (231, 870961), (273, 736967), (357, 563563), (429, 468979), (539, 373269), (561, 358631), (563, 357357), (637, 315843), (663, 303457), (833, 241527), (1001, 200991), (1309, 153699), (1547, 130053), (1617, 124423), (1689, 119119), (1911, 105281), (2431, 82761), (2499, 80509), (3003, 66997), (3927, 51233), (3941, 51051), (4641, 43351), (6193, 32487), (7007, 28713), (7293, 27587), (7319, 27489), (9163, 21957), (9571, 21021), (10829, 18579), (11823, 17017)]