21641152

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2$

素因数の和:118

約数の個数: 84

約数和(自身を含む): 50032920

約数和(自身を除く): 28391768

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 37, 38, 52, 64, 74, 76, 104, 148, 152, 208, 247, 296, 304, 416, 481, 494, 592, 608, 703, 832, 962, 988, 1184, 1216, 1369, 1406, 1924, 1976, 2368, 2738, 2812, 3848, 3952, 5476, 5624, 7696, 7904, 9139, 10952, 11248, 15392, 15808, 17797, 18278, 21904, 22496, 26011, 30784, 35594, 36556, 43808, 44992, 52022, 71188, 73112, 87616, 104044, 142376, 146224, 208088, 284752, 292448, 338143, 416176, 569504, 584896, 676286, 832352, 1139008, 1352572, 1664704, 2705144, 5410288, 10820576, 21641152]

約数ペア:

[(1, 21641152), (2, 10820576), (4, 5410288), (8, 2705144), (13, 1664704), (16, 1352572), (19, 1139008), (26, 832352), (32, 676286), (37, 584896), (38, 569504), (52, 416176), (64, 338143), (74, 292448), (76, 284752), (104, 208088), (148, 146224), (152, 142376), (208, 104044), (247, 87616), (296, 73112), (304, 71188), (416, 52022), (481, 44992), (494, 43808), (592, 36556), (608, 35594), (703, 30784), (832, 26011), (962, 22496), (988, 21904), (1184, 18278), (1216, 17797), (1369, 15808), (1406, 15392), (1924, 11248), (1976, 10952), (2368, 9139), (2738, 7904), (2812, 7696), (3848, 5624), (3952, 5476)]