21980868

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20129}}^1$

素因数の和:20156

約数の個数: 48

約数和(自身を含む): 63127680

約数和(自身を除く): 41146812

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 20129, 40258, 60387, 80516, 120774, 140903, 241548, 261677, 281806, 422709, 523354, 563612, 785031, 845418, 1046708, 1570062, 1690836, 1831739, 3140124, 3663478, 5495217, 7326956, 10990434, 21980868]

約数ペア:

[(1, 21980868), (2, 10990434), (3, 7326956), (4, 5495217), (6, 3663478), (7, 3140124), (12, 1831739), (13, 1690836), (14, 1570062), (21, 1046708), (26, 845418), (28, 785031), (39, 563612), (42, 523354), (52, 422709), (78, 281806), (84, 261677), (91, 241548), (156, 140903), (182, 120774), (273, 80516), (364, 60387), (546, 40258), (1092, 20129)]