28868931

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 51979200

約数和(自身を除く): 23110269

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 101, 117, 273, 303, 349, 707, 819, 909, 1047, 1313, 2121, 2443, 3141, 3939, 4537, 6363, 7329, 9191, 11817, 13611, 21987, 27573, 31759, 35249, 40833, 82719, 95277, 105747, 246743, 285831, 317241, 458237, 740229, 1374711, 2220687, 3207659, 4124133, 9622977, 28868931]

約数ペア:

[(1, 28868931), (3, 9622977), (7, 4124133), (9, 3207659), (13, 2220687), (21, 1374711), (39, 740229), (63, 458237), (91, 317241), (101, 285831), (117, 246743), (273, 105747), (303, 95277), (349, 82719), (707, 40833), (819, 35249), (909, 31759), (1047, 27573), (1313, 21987), (2121, 13611), (2443, 11817), (3141, 9191), (3939, 7329), (4537, 6363)]