21923685

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{881}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 22105755

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 79, 105, 237, 315, 395, 553, 711, 881, 1185, 1659, 2643, 2765, 3555, 4405, 4977, 6167, 7929, 8295, 13215, 18501, 24885, 30835, 39645, 55503, 69599, 92505, 208797, 277515, 347995, 487193, 626391, 1043985, 1461579, 2435965, 3131955, 4384737, 7307895, 21923685]

約数ペア:

[(1, 21923685), (3, 7307895), (5, 4384737), (7, 3131955), (9, 2435965), (15, 1461579), (21, 1043985), (35, 626391), (45, 487193), (63, 347995), (79, 277515), (105, 208797), (237, 92505), (315, 69599), (395, 55503), (553, 39645), (711, 30835), (881, 24885), (1185, 18501), (1659, 13215), (2643, 8295), (2765, 7929), (3555, 6167), (4405, 4977)]