21041004040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4420379}}^1$

素因数の和:4420414

約数の個数: 64

約数和(自身を含む): 57288124800

約数和(自身を除く): 36247120760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4760, 4420379, 8840758, 17681516, 22101895, 30942653, 35363032, 44203790, 61885306, 75146443, 88407580, 123770612, 150292886, 154713265, 176815160, 247541224, 300585772, 309426530, 375732215, 526025101, 601171544, 618853060, 751464430, 1052050202, 1237706120, 1502928860, 2104100404, 2630125505, 3005857720, 4208200808, 5260251010, 10520502020, 21041004040]

約数ペア:

[(1, 21041004040), (2, 10520502020), (4, 5260251010), (5, 4208200808), (7, 3005857720), (8, 2630125505), (10, 2104100404), (14, 1502928860), (17, 1237706120), (20, 1052050202), (28, 751464430), (34, 618853060), (35, 601171544), (40, 526025101), (56, 375732215), (68, 309426530), (70, 300585772), (85, 247541224), (119, 176815160), (136, 154713265), (140, 150292886), (170, 123770612), (238, 88407580), (280, 75146443), (340, 61885306), (476, 44203790), (595, 35363032), (680, 30942653), (952, 22101895), (1190, 17681516), (2380, 8840758), (4760, 4420379)]