21468018

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 29625486

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 131, 143, 191, 262, 286, 382, 393, 429, 573, 786, 858, 1146, 1441, 1703, 2101, 2483, 2882, 3406, 4202, 4323, 4966, 5109, 6303, 7449, 8646, 10218, 12606, 14898, 18733, 25021, 27313, 37466, 50042, 54626, 56199, 75063, 81939, 112398, 150126, 163878, 275231, 325273, 550462, 650546, 825693, 975819, 1651386, 1951638, 3578003, 7156006, 10734009, 21468018]

約数ペア:

[(1, 21468018), (2, 10734009), (3, 7156006), (6, 3578003), (11, 1951638), (13, 1651386), (22, 975819), (26, 825693), (33, 650546), (39, 550462), (66, 325273), (78, 275231), (131, 163878), (143, 150126), (191, 112398), (262, 81939), (286, 75063), (382, 56199), (393, 54626), (429, 50042), (573, 37466), (786, 27313), (858, 25021), (1146, 18733), (1441, 14898), (1703, 12606), (2101, 10218), (2483, 8646), (2882, 7449), (3406, 6303), (4202, 5109), (4323, 4966)]