21451253761

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{1823}}^1$

素因数の和:2110

約数の個数: 48

約数和(自身を含む): 26679020544

約数和(自身を除く): 5227766783

約数列:

[1, 7, 23, 49, 53, 161, 197, 371, 1127, 1219, 1379, 1823, 2597, 4531, 8533, 9653, 10441, 12761, 31717, 41929, 59731, 73087, 89327, 96619, 222019, 240143, 293503, 359131, 511609, 676333, 1681001, 2054521, 2222237, 2513917, 4734331, 8260013, 11767007, 15555659, 17597419, 19033943, 57820091, 108889613, 133237601, 404740637, 437780689, 932663207, 3064464823, 21451253761]

約数ペア:

[(1, 21451253761), (7, 3064464823), (23, 932663207), (49, 437780689), (53, 404740637), (161, 133237601), (197, 108889613), (371, 57820091), (1127, 19033943), (1219, 17597419), (1379, 15555659), (1823, 11767007), (2597, 8260013), (4531, 4734331), (8533, 2513917), (9653, 2222237), (10441, 2054521), (12761, 1681001), (31717, 676333), (41929, 511609), (59731, 359131), (73087, 293503), (89327, 240143), (96619, 222019)]