21511308

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19699}}^1$

素因数の和:19726

約数の個数: 48

約数和(自身を含む): 61779200

約数和(自身を除く): 40267892

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, 19699, 39398, 59097, 78796, 118194, 137893, 236388, 256087, 275786, 413679, 512174, 551572, 768261, 827358, 1024348, 1536522, 1654716, 1792609, 3073044, 3585218, 5377827, 7170436, 10755654, 21511308]

約数ペア:

[(1, 21511308), (2, 10755654), (3, 7170436), (4, 5377827), (6, 3585218), (7, 3073044), (12, 1792609), (13, 1654716), (14, 1536522), (21, 1024348), (26, 827358), (28, 768261), (39, 551572), (42, 512174), (52, 413679), (78, 275786), (84, 256087), (91, 236388), (156, 137893), (182, 118194), (273, 78796), (364, 59097), (546, 39398), (1092, 19699)]