21709688

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2711}}^1$

素因数の和:2748

約数の個数: 64

約数和(自身を含む): 54673920

約数和(自身を除く): 32964232

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2711, 4004, 5422, 8008, 10844, 18977, 21688, 29821, 35243, 37954, 59642, 70486, 75908, 119284, 140972, 151816, 208747, 238568, 246701, 281944, 387673, 417494, 493402, 775346, 834988, 986804, 1550692, 1669976, 1973608, 2713711, 3101384, 5427422, 10854844, 21709688]

約数ペア:

[(1, 21709688), (2, 10854844), (4, 5427422), (7, 3101384), (8, 2713711), (11, 1973608), (13, 1669976), (14, 1550692), (22, 986804), (26, 834988), (28, 775346), (44, 493402), (52, 417494), (56, 387673), (77, 281944), (88, 246701), (91, 238568), (104, 208747), (143, 151816), (154, 140972), (182, 119284), (286, 75908), (308, 70486), (364, 59642), (572, 37954), (616, 35243), (728, 29821), (1001, 21688), (1144, 18977), (2002, 10844), (2711, 8008), (4004, 5422)]