21627672

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 64281600

約数和(自身を除く): 42653928

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 51, 61, 66, 68, 79, 88, 102, 122, 132, 136, 158, 183, 187, 204, 237, 244, 264, 316, 366, 374, 408, 474, 488, 561, 632, 671, 732, 748, 869, 948, 1037, 1122, 1342, 1343, 1464, 1496, 1738, 1896, 2013, 2074, 2244, 2607, 2684, 2686, 3111, 3476, 4026, 4029, 4148, 4488, 4819, 5214, 5368, 5372, 6222, 6952, 8052, 8058, 8296, 9638, 10428, 10744, 11407, 12444, 14457, 14773, 16104, 16116, 19276, 20856, 22814, 24888, 28914, 29546, 32232, 34221, 38552, 44319, 45628, 53009, 57828, 59092, 68442, 81923, 88638, 91256, 106018, 115656, 118184, 136884, 159027, 163846, 177276, 212036, 245769, 273768, 318054, 327692, 354552, 424072, 491538, 636108, 655384, 901153, 983076, 1272216, 1802306, 1966152, 2703459, 3604612, 5406918, 7209224, 10813836, 21627672]

約数ペア:

[(1, 21627672), (2, 10813836), (3, 7209224), (4, 5406918), (6, 3604612), (8, 2703459), (11, 1966152), (12, 1802306), (17, 1272216), (22, 983076), (24, 901153), (33, 655384), (34, 636108), (44, 491538), (51, 424072), (61, 354552), (66, 327692), (68, 318054), (79, 273768), (88, 245769), (102, 212036), (122, 177276), (132, 163846), (136, 159027), (158, 136884), (183, 118184), (187, 115656), (204, 106018), (237, 91256), (244, 88638), (264, 81923), (316, 68442), (366, 59092), (374, 57828), (408, 53009), (474, 45628), (488, 44319), (561, 38552), (632, 34221), (671, 32232), (732, 29546), (748, 28914), (869, 24888), (948, 22814), (1037, 20856), (1122, 19276), (1342, 16116), (1343, 16104), (1464, 14773), (1496, 14457), (1738, 12444), (1896, 11407), (2013, 10744), (2074, 10428), (2244, 9638), (2607, 8296), (2684, 8058), (2686, 8052), (3111, 6952), (3476, 6222), (4026, 5372), (4029, 5368), (4148, 5214), (4488, 4819)]