21341268

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1471}}^1$

素因数の和:1525

約数の個数: 72

約数和(自身を含む): 60010496

約数和(自身を除く): 38669228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1471, 1612, 2418, 2942, 3627, 4413, 4836, 5884, 7254, 8826, 13239, 14508, 17652, 19123, 26478, 38246, 45601, 52956, 57369, 76492, 91202, 114738, 136803, 172107, 182404, 229476, 273606, 344214, 410409, 547212, 592813, 688428, 820818, 1185626, 1641636, 1778439, 2371252, 3556878, 5335317, 7113756, 10670634, 21341268]

約数ペア:

[(1, 21341268), (2, 10670634), (3, 7113756), (4, 5335317), (6, 3556878), (9, 2371252), (12, 1778439), (13, 1641636), (18, 1185626), (26, 820818), (31, 688428), (36, 592813), (39, 547212), (52, 410409), (62, 344214), (78, 273606), (93, 229476), (117, 182404), (124, 172107), (156, 136803), (186, 114738), (234, 91202), (279, 76492), (372, 57369), (403, 52956), (468, 45601), (558, 38246), (806, 26478), (1116, 19123), (1209, 17652), (1471, 14508), (1612, 13239), (2418, 8826), (2942, 7254), (3627, 5884), (4413, 4836)]