21691186286

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{53617}}^1$

素因数の和:53745

約数の個数: 64

約数和(自身を含む): 42249268224

約数和(自身を除く): 20558081938

約数列:

[1, 2, 7, 11, 14, 22, 37, 71, 74, 77, 142, 154, 259, 407, 497, 518, 781, 814, 994, 1562, 2627, 2849, 5254, 5467, 5698, 10934, 18389, 28897, 36778, 53617, 57794, 107234, 202279, 375319, 404558, 589787, 750638, 1179574, 1983829, 3806807, 3967658, 4128509, 7613614, 8257018, 13886803, 21822119, 26647649, 27773606, 41874877, 43644238, 53295298, 83749754, 140851859, 152754833, 281703718, 293124139, 305509666, 586248278, 985963013, 1549370449, 1971926026, 3098740898, 10845593143, 21691186286]

約数ペア:

[(1, 21691186286), (2, 10845593143), (7, 3098740898), (11, 1971926026), (14, 1549370449), (22, 985963013), (37, 586248278), (71, 305509666), (74, 293124139), (77, 281703718), (142, 152754833), (154, 140851859), (259, 83749754), (407, 53295298), (497, 43644238), (518, 41874877), (781, 27773606), (814, 26647649), (994, 21822119), (1562, 13886803), (2627, 8257018), (2849, 7613614), (5254, 4128509), (5467, 3967658), (5698, 3806807), (10934, 1983829), (18389, 1179574), (28897, 750638), (36778, 589787), (53617, 404558), (57794, 375319), (107234, 202279)]