21777488

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:543

約数の個数: 40

約数和(自身を含む): 43798536

約数和(自身を除く): 22021048

約数列:

[1, 2, 4, 8, 16, 53, 61, 106, 122, 212, 244, 421, 424, 488, 842, 848, 976, 1684, 3233, 3368, 6466, 6736, 12932, 22313, 25681, 25864, 44626, 51362, 51728, 89252, 102724, 178504, 205448, 357008, 410896, 1361093, 2722186, 5444372, 10888744, 21777488]

約数ペア:

[(1, 21777488), (2, 10888744), (4, 5444372), (8, 2722186), (16, 1361093), (53, 410896), (61, 357008), (106, 205448), (122, 178504), (212, 102724), (244, 89252), (421, 51728), (424, 51362), (488, 44626), (842, 25864), (848, 25681), (976, 22313), (1684, 12932), (3233, 6736), (3368, 6466)]