19994436

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7213}}^1$

素因数の和:7241

約数の個数: 72

約数和(自身を含む): 63021504

約数和(自身を除く): 43027068

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7213, 14426, 21639, 28852, 43278, 50491, 64917, 79343, 86556, 100982, 129834, 151473, 158686, 201964, 238029, 259668, 302946, 317372, 454419, 476058, 555401, 605892, 714087, 908838, 952116, 1110802, 1428174, 1666203, 1817676, 2221604, 2856348, 3332406, 4998609, 6664812, 9997218, 19994436]

約数ペア:

[(1, 19994436), (2, 9997218), (3, 6664812), (4, 4998609), (6, 3332406), (7, 2856348), (9, 2221604), (11, 1817676), (12, 1666203), (14, 1428174), (18, 1110802), (21, 952116), (22, 908838), (28, 714087), (33, 605892), (36, 555401), (42, 476058), (44, 454419), (63, 317372), (66, 302946), (77, 259668), (84, 238029), (99, 201964), (126, 158686), (132, 151473), (154, 129834), (198, 100982), (231, 86556), (252, 79343), (308, 64917), (396, 50491), (462, 43278), (693, 28852), (924, 21639), (1386, 14426), (2772, 7213)]