18069828

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 49795200

約数和(自身を除く): 31725372

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 79, 84, 98, 147, 158, 196, 237, 294, 316, 389, 474, 553, 588, 778, 948, 1106, 1167, 1556, 1659, 2212, 2334, 2723, 3318, 3871, 4668, 5446, 6636, 7742, 8169, 10892, 11613, 15484, 16338, 19061, 23226, 30731, 32676, 38122, 46452, 57183, 61462, 76244, 92193, 114366, 122924, 184386, 215117, 228732, 368772, 430234, 645351, 860468, 1290702, 1505819, 2581404, 3011638, 4517457, 6023276, 9034914, 18069828]

約数ペア:

[(1, 18069828), (2, 9034914), (3, 6023276), (4, 4517457), (6, 3011638), (7, 2581404), (12, 1505819), (14, 1290702), (21, 860468), (28, 645351), (42, 430234), (49, 368772), (79, 228732), (84, 215117), (98, 184386), (147, 122924), (158, 114366), (196, 92193), (237, 76244), (294, 61462), (316, 57183), (389, 46452), (474, 38122), (553, 32676), (588, 30731), (778, 23226), (948, 19061), (1106, 16338), (1167, 15484), (1556, 11613), (1659, 10892), (2212, 8169), (2334, 7742), (2723, 6636), (3318, 5446), (3871, 4668)]