16861988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{719}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 35562240

約数和(自身を除く): 18700252

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 82, 143, 164, 286, 451, 533, 572, 719, 902, 1066, 1438, 1804, 2132, 2876, 5863, 7909, 9347, 11726, 15818, 18694, 23452, 29479, 31636, 37388, 58958, 102817, 117916, 205634, 324269, 383227, 411268, 648538, 766454, 1297076, 1532908, 4215497, 8430994, 16861988]

約数ペア:

[(1, 16861988), (2, 8430994), (4, 4215497), (11, 1532908), (13, 1297076), (22, 766454), (26, 648538), (41, 411268), (44, 383227), (52, 324269), (82, 205634), (143, 117916), (164, 102817), (286, 58958), (451, 37388), (533, 31636), (572, 29479), (719, 23452), (902, 18694), (1066, 15818), (1438, 11726), (1804, 9347), (2132, 7909), (2876, 5863)]