21953547

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 40135680

約数和(自身を除く): 18182133

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 79, 99, 231, 237, 401, 553, 693, 711, 869, 1203, 1659, 2607, 2807, 3609, 4411, 4977, 6083, 7821, 8421, 13233, 18249, 25263, 30877, 31679, 39699, 54747, 92631, 95037, 221753, 277893, 285111, 348469, 665259, 1045407, 1995777, 2439283, 3136221, 7317849, 21953547]

約数ペア:

[(1, 21953547), (3, 7317849), (7, 3136221), (9, 2439283), (11, 1995777), (21, 1045407), (33, 665259), (63, 348469), (77, 285111), (79, 277893), (99, 221753), (231, 95037), (237, 92631), (401, 54747), (553, 39699), (693, 31679), (711, 30877), (869, 25263), (1203, 18249), (1659, 13233), (2607, 8421), (2807, 7821), (3609, 6083), (4411, 4977)]