21322624

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 24944576

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 64, 68, 82, 128, 136, 164, 239, 272, 328, 478, 544, 656, 697, 956, 1088, 1312, 1394, 1912, 2176, 2624, 2788, 3824, 4063, 5248, 5576, 7648, 8126, 9799, 11152, 15296, 16252, 19598, 22304, 30592, 32504, 39196, 44608, 65008, 78392, 89216, 130016, 156784, 166583, 260032, 313568, 333166, 520064, 627136, 666332, 1254272, 1332664, 2665328, 5330656, 10661312, 21322624]

約数ペア:

[(1, 21322624), (2, 10661312), (4, 5330656), (8, 2665328), (16, 1332664), (17, 1254272), (32, 666332), (34, 627136), (41, 520064), (64, 333166), (68, 313568), (82, 260032), (128, 166583), (136, 156784), (164, 130016), (239, 89216), (272, 78392), (328, 65008), (478, 44608), (544, 39196), (656, 32504), (697, 30592), (956, 22304), (1088, 19598), (1312, 16252), (1394, 15296), (1912, 11152), (2176, 9799), (2624, 8126), (2788, 7648), (3824, 5576), (4063, 5248)]