19966716

素因数分解:

$2^2\times 3^3\times 7^5\times {\mathrm{11}}^1$

素因数の和:59

約数の個数: 144

約数和(自身を含む): 65882880

約数和(自身を除く): 45916164

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 49, 54, 63, 66, 77, 84, 98, 99, 108, 126, 132, 147, 154, 189, 196, 198, 231, 252, 294, 297, 308, 343, 378, 396, 441, 462, 539, 588, 594, 686, 693, 756, 882, 924, 1029, 1078, 1188, 1323, 1372, 1386, 1617, 1764, 2058, 2079, 2156, 2401, 2646, 2772, 3087, 3234, 3773, 4116, 4158, 4802, 4851, 5292, 6174, 6468, 7203, 7546, 8316, 9261, 9604, 9702, 11319, 12348, 14406, 14553, 15092, 16807, 18522, 19404, 21609, 22638, 26411, 28812, 29106, 33614, 33957, 37044, 43218, 45276, 50421, 52822, 58212, 64827, 67228, 67914, 79233, 86436, 100842, 101871, 105644, 129654, 135828, 151263, 158466, 184877, 201684, 203742, 237699, 259308, 302526, 316932, 369754, 407484, 453789, 475398, 554631, 605052, 713097, 739508, 907578, 950796, 1109262, 1426194, 1663893, 1815156, 2218524, 2852388, 3327786, 4991679, 6655572, 9983358, 19966716]

約数ペア:

[(1, 19966716), (2, 9983358), (3, 6655572), (4, 4991679), (6, 3327786), (7, 2852388), (9, 2218524), (11, 1815156), (12, 1663893), (14, 1426194), (18, 1109262), (21, 950796), (22, 907578), (27, 739508), (28, 713097), (33, 605052), (36, 554631), (42, 475398), (44, 453789), (49, 407484), (54, 369754), (63, 316932), (66, 302526), (77, 259308), (84, 237699), (98, 203742), (99, 201684), (108, 184877), (126, 158466), (132, 151263), (147, 135828), (154, 129654), (189, 105644), (196, 101871), (198, 100842), (231, 86436), (252, 79233), (294, 67914), (297, 67228), (308, 64827), (343, 58212), (378, 52822), (396, 50421), (441, 45276), (462, 43218), (539, 37044), (588, 33957), (594, 33614), (686, 29106), (693, 28812), (756, 26411), (882, 22638), (924, 21609), (1029, 19404), (1078, 18522), (1188, 16807), (1323, 15092), (1372, 14553), (1386, 14406), (1617, 12348), (1764, 11319), (2058, 9702), (2079, 9604), (2156, 9261), (2401, 8316), (2646, 7546), (2772, 7203), (3087, 6468), (3234, 6174), (3773, 5292), (4116, 4851), (4158, 4802)]