21000940212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{919}}^1\times {\mathrm{1669}}^1$

素因数の和:2765

約数の個数: 96

約数和(自身を含む): 56441190400

約数和(自身を除く): 35440250188

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 163, 326, 489, 652, 919, 978, 1141, 1669, 1838, 1956, 2282, 2757, 3338, 3423, 3676, 4564, 5007, 5514, 6433, 6676, 6846, 10014, 11028, 11683, 12866, 13692, 19299, 20028, 23366, 25732, 35049, 38598, 46732, 70098, 77196, 140196, 149797, 272047, 299594, 449391, 544094, 599188, 816141, 898782, 1048579, 1088188, 1533811, 1632282, 1797564, 1904329, 2097158, 3067622, 3145737, 3264564, 3808658, 4194316, 4601433, 5712987, 6135244, 6291474, 7617316, 9202866, 10736677, 11425974, 12582948, 18405732, 21473354, 22851948, 32210031, 42946708, 64420062, 128840124, 250011193, 500022386, 750033579, 1000044772, 1500067158, 1750078351, 3000134316, 3500156702, 5250235053, 7000313404, 10500470106, 21000940212]

約数ペア:

[(1, 21000940212), (2, 10500470106), (3, 7000313404), (4, 5250235053), (6, 3500156702), (7, 3000134316), (12, 1750078351), (14, 1500067158), (21, 1000044772), (28, 750033579), (42, 500022386), (84, 250011193), (163, 128840124), (326, 64420062), (489, 42946708), (652, 32210031), (919, 22851948), (978, 21473354), (1141, 18405732), (1669, 12582948), (1838, 11425974), (1956, 10736677), (2282, 9202866), (2757, 7617316), (3338, 6291474), (3423, 6135244), (3676, 5712987), (4564, 4601433), (5007, 4194316), (5514, 3808658), (6433, 3264564), (6676, 3145737), (6846, 3067622), (10014, 2097158), (11028, 1904329), (11683, 1797564), (12866, 1632282), (13692, 1533811), (19299, 1088188), (20028, 1048579), (23366, 898782), (25732, 816141), (35049, 599188), (38598, 544094), (46732, 449391), (70098, 299594), (77196, 272047), (140196, 149797)]