21000340854

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{189983}}^1$

素因数の和:190106

約数の個数: 64

約数和(自身を含む): 49243852800

約数和(自身を除く): 28243511946

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 89, 138, 178, 207, 267, 414, 534, 621, 801, 1242, 1602, 2047, 2403, 4094, 4806, 6141, 12282, 18423, 36846, 55269, 110538, 189983, 379966, 569949, 1139898, 1709847, 3419694, 4369609, 5129541, 8739218, 10259082, 13108827, 16908487, 26217654, 33816974, 39326481, 50725461, 78652962, 101450922, 117979443, 152176383, 235958886, 304352766, 388895201, 456529149, 777790402, 913058298, 1166685603, 2333371206, 3500056809, 7000113618, 10500170427, 21000340854]

約数ペア:

[(1, 21000340854), (2, 10500170427), (3, 7000113618), (6, 3500056809), (9, 2333371206), (18, 1166685603), (23, 913058298), (27, 777790402), (46, 456529149), (54, 388895201), (69, 304352766), (89, 235958886), (138, 152176383), (178, 117979443), (207, 101450922), (267, 78652962), (414, 50725461), (534, 39326481), (621, 33816974), (801, 26217654), (1242, 16908487), (1602, 13108827), (2047, 10259082), (2403, 8739218), (4094, 5129541), (4806, 4369609), (6141, 3419694), (12282, 1709847), (18423, 1139898), (36846, 569949), (55269, 379966), (110538, 189983)]