20511078

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1301

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 31328922

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 23, 34, 42, 46, 51, 69, 102, 119, 138, 161, 238, 322, 357, 391, 483, 714, 782, 966, 1173, 1249, 2346, 2498, 2737, 3747, 5474, 7494, 8211, 8743, 16422, 17486, 21233, 26229, 28727, 42466, 52458, 57454, 63699, 86181, 127398, 148631, 172362, 201089, 297262, 402178, 445893, 488359, 603267, 891786, 976718, 1206534, 1465077, 2930154, 3418513, 6837026, 10255539, 20511078]

約数ペア:

[(1, 20511078), (2, 10255539), (3, 6837026), (6, 3418513), (7, 2930154), (14, 1465077), (17, 1206534), (21, 976718), (23, 891786), (34, 603267), (42, 488359), (46, 445893), (51, 402178), (69, 297262), (102, 201089), (119, 172362), (138, 148631), (161, 127398), (238, 86181), (322, 63699), (357, 57454), (391, 52458), (483, 42466), (714, 28727), (782, 26229), (966, 21233), (1173, 17486), (1249, 16422), (2346, 8743), (2498, 8211), (2737, 7494), (3747, 5474)]