17721418

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 32443488

約数和(自身を除く): 14722070

約数列:

[1, 2, 11, 13, 22, 26, 43, 86, 121, 131, 143, 242, 262, 286, 473, 559, 946, 1118, 1441, 1573, 1703, 2882, 3146, 3406, 5203, 5633, 6149, 10406, 11266, 12298, 15851, 18733, 31702, 37466, 61963, 67639, 73229, 123926, 135278, 146458, 206063, 412126, 681593, 805519, 1363186, 1611038, 8860709, 17721418]

約数ペア:

[(1, 17721418), (2, 8860709), (11, 1611038), (13, 1363186), (22, 805519), (26, 681593), (43, 412126), (86, 206063), (121, 146458), (131, 135278), (143, 123926), (242, 73229), (262, 67639), (286, 61963), (473, 37466), (559, 31702), (946, 18733), (1118, 15851), (1441, 12298), (1573, 11266), (1703, 10406), (2882, 6149), (3146, 5633), (3406, 5203)]