21666055300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{242621}}^1$

素因数の和:242701

約数の個数: 72

約数和(自身を含む): 50543015040

約数和(自身を除く): 28876959740

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 47, 50, 76, 94, 95, 100, 188, 190, 235, 380, 470, 475, 893, 940, 950, 1175, 1786, 1900, 2350, 3572, 4465, 4700, 8930, 17860, 22325, 44650, 89300, 242621, 485242, 970484, 1213105, 2426210, 4609799, 4852420, 6065525, 9219598, 11403187, 12131050, 18439196, 22806374, 23048995, 24262100, 45612748, 46097990, 57015935, 92195980, 114031870, 115244975, 216660553, 228063740, 230489950, 285079675, 433321106, 460979900, 570159350, 866642212, 1083302765, 1140318700, 2166605530, 4333211060, 5416513825, 10833027650, 21666055300]

約数ペア:

[(1, 21666055300), (2, 10833027650), (4, 5416513825), (5, 4333211060), (10, 2166605530), (19, 1140318700), (20, 1083302765), (25, 866642212), (38, 570159350), (47, 460979900), (50, 433321106), (76, 285079675), (94, 230489950), (95, 228063740), (100, 216660553), (188, 115244975), (190, 114031870), (235, 92195980), (380, 57015935), (470, 46097990), (475, 45612748), (893, 24262100), (940, 23048995), (950, 22806374), (1175, 18439196), (1786, 12131050), (1900, 11403187), (2350, 9219598), (3572, 6065525), (4465, 4852420), (4700, 4609799), (8930, 2426210), (17860, 1213105), (22325, 970484), (44650, 485242), (89300, 242621)]