21928088

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^2\times {\mathrm{331}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 51946380

約数和(自身を除く): 30018292

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 169, 182, 196, 331, 338, 364, 392, 637, 662, 676, 728, 1183, 1274, 1324, 1352, 2317, 2366, 2548, 2648, 4303, 4634, 4732, 5096, 8281, 8606, 9268, 9464, 16219, 16562, 17212, 18536, 30121, 32438, 33124, 34424, 55939, 60242, 64876, 66248, 111878, 120484, 129752, 210847, 223756, 240968, 391573, 421694, 447512, 783146, 843388, 1566292, 1686776, 2741011, 3132584, 5482022, 10964044, 21928088]

約数ペア:

[(1, 21928088), (2, 10964044), (4, 5482022), (7, 3132584), (8, 2741011), (13, 1686776), (14, 1566292), (26, 843388), (28, 783146), (49, 447512), (52, 421694), (56, 391573), (91, 240968), (98, 223756), (104, 210847), (169, 129752), (182, 120484), (196, 111878), (331, 66248), (338, 64876), (364, 60242), (392, 55939), (637, 34424), (662, 33124), (676, 32438), (728, 30121), (1183, 18536), (1274, 17212), (1324, 16562), (1352, 16219), (2317, 9464), (2366, 9268), (2548, 8606), (2648, 8281), (4303, 5096), (4634, 4732)]