21699140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3359}}^1$

素因数の和:3404

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 29104060

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 3359, 6460, 6718, 13436, 16795, 33590, 57103, 63821, 67180, 114206, 127642, 228412, 255284, 285515, 319105, 571030, 638210, 1084957, 1142060, 1276420, 2169914, 4339828, 5424785, 10849570, 21699140]

約数ペア:

[(1, 21699140), (2, 10849570), (4, 5424785), (5, 4339828), (10, 2169914), (17, 1276420), (19, 1142060), (20, 1084957), (34, 638210), (38, 571030), (68, 319105), (76, 285515), (85, 255284), (95, 228412), (170, 127642), (190, 114206), (323, 67180), (340, 63821), (380, 57103), (646, 33590), (1292, 16795), (1615, 13436), (3230, 6718), (3359, 6460)]