21536416

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 50621760

約数和(自身を除く): 29085344

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 59, 61, 68, 88, 118, 122, 136, 176, 187, 236, 244, 272, 352, 374, 472, 488, 544, 649, 671, 748, 944, 976, 1003, 1037, 1298, 1342, 1496, 1888, 1952, 2006, 2074, 2596, 2684, 2992, 3599, 4012, 4148, 5192, 5368, 5984, 7198, 8024, 8296, 10384, 10736, 11033, 11407, 14396, 16048, 16592, 20768, 21472, 22066, 22814, 28792, 32096, 33184, 39589, 44132, 45628, 57584, 61183, 79178, 88264, 91256, 115168, 122366, 158356, 176528, 182512, 244732, 316712, 353056, 365024, 489464, 633424, 673013, 978928, 1266848, 1346026, 1957856, 2692052, 5384104, 10768208, 21536416]

約数ペア:

[(1, 21536416), (2, 10768208), (4, 5384104), (8, 2692052), (11, 1957856), (16, 1346026), (17, 1266848), (22, 978928), (32, 673013), (34, 633424), (44, 489464), (59, 365024), (61, 353056), (68, 316712), (88, 244732), (118, 182512), (122, 176528), (136, 158356), (176, 122366), (187, 115168), (236, 91256), (244, 88264), (272, 79178), (352, 61183), (374, 57584), (472, 45628), (488, 44132), (544, 39589), (649, 33184), (671, 32096), (748, 28792), (944, 22814), (976, 22066), (1003, 21472), (1037, 20768), (1298, 16592), (1342, 16048), (1496, 14396), (1888, 11407), (1952, 11033), (2006, 10736), (2074, 10384), (2596, 8296), (2684, 8024), (2992, 7198), (3599, 5984), (4012, 5368), (4148, 5192)]