21027870

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4099}}^1$

素因数の和:4134

約数の個数: 64

約数和(自身を含む): 59040000

約数和(自身を除く): 38012130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 190, 270, 285, 342, 513, 570, 855, 1026, 1710, 2565, 4099, 5130, 8198, 12297, 20495, 24594, 36891, 40990, 61485, 73782, 77881, 110673, 122970, 155762, 184455, 221346, 233643, 368910, 389405, 467286, 553365, 700929, 778810, 1106730, 1168215, 1401858, 2102787, 2336430, 3504645, 4205574, 7009290, 10513935, 21027870]

約数ペア:

[(1, 21027870), (2, 10513935), (3, 7009290), (5, 4205574), (6, 3504645), (9, 2336430), (10, 2102787), (15, 1401858), (18, 1168215), (19, 1106730), (27, 778810), (30, 700929), (38, 553365), (45, 467286), (54, 389405), (57, 368910), (90, 233643), (95, 221346), (114, 184455), (135, 155762), (171, 122970), (190, 110673), (270, 77881), (285, 73782), (342, 61485), (513, 40990), (570, 36891), (855, 24594), (1026, 20495), (1710, 12297), (2565, 8198), (4099, 5130)]