21018270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7699}}^1$

素因数の和:7729

約数の個数: 64

約数和(自身を含む): 62092800

約数和(自身を除く): 41074530

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7699, 15398, 23097, 38495, 46194, 53893, 76990, 100087, 107786, 115485, 161679, 200174, 230970, 269465, 300261, 323358, 500435, 538930, 600522, 700609, 808395, 1000870, 1401218, 1501305, 1616790, 2101827, 3002610, 3503045, 4203654, 7006090, 10509135, 21018270]

約数ペア:

[(1, 21018270), (2, 10509135), (3, 7006090), (5, 4203654), (6, 3503045), (7, 3002610), (10, 2101827), (13, 1616790), (14, 1501305), (15, 1401218), (21, 1000870), (26, 808395), (30, 700609), (35, 600522), (39, 538930), (42, 500435), (65, 323358), (70, 300261), (78, 269465), (91, 230970), (105, 200174), (130, 161679), (182, 115485), (195, 107786), (210, 100087), (273, 76990), (390, 53893), (455, 46194), (546, 38495), (910, 23097), (1365, 15398), (2730, 7699)]