20171928

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1009}}^1$

素因数の和:1049

約数の個数: 96

約数和(自身を含む): 62175600

約数和(自身を除く): 42003672

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 49, 51, 56, 68, 84, 98, 102, 119, 136, 147, 168, 196, 204, 238, 294, 357, 392, 408, 476, 588, 714, 833, 952, 1009, 1176, 1428, 1666, 2018, 2499, 2856, 3027, 3332, 4036, 4998, 6054, 6664, 7063, 8072, 9996, 12108, 14126, 17153, 19992, 21189, 24216, 28252, 34306, 42378, 49441, 51459, 56504, 68612, 84756, 98882, 102918, 120071, 137224, 148323, 169512, 197764, 205836, 240142, 296646, 360213, 395528, 411672, 480284, 593292, 720426, 840497, 960568, 1186584, 1440852, 1680994, 2521491, 2881704, 3361988, 5042982, 6723976, 10085964, 20171928]

約数ペア:

[(1, 20171928), (2, 10085964), (3, 6723976), (4, 5042982), (6, 3361988), (7, 2881704), (8, 2521491), (12, 1680994), (14, 1440852), (17, 1186584), (21, 960568), (24, 840497), (28, 720426), (34, 593292), (42, 480284), (49, 411672), (51, 395528), (56, 360213), (68, 296646), (84, 240142), (98, 205836), (102, 197764), (119, 169512), (136, 148323), (147, 137224), (168, 120071), (196, 102918), (204, 98882), (238, 84756), (294, 68612), (357, 56504), (392, 51459), (408, 49441), (476, 42378), (588, 34306), (714, 28252), (833, 24216), (952, 21189), (1009, 19992), (1176, 17153), (1428, 14126), (1666, 12108), (2018, 9996), (2499, 8072), (2856, 7063), (3027, 6664), (3332, 6054), (4036, 4998)]