21024194545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{1481}}^1$

素因数の和:1690

約数の個数: 64

約数和(自身を含む): 28425945600

約数和(自身を除く): 7401751055

約数列:

[1, 5, 19, 23, 73, 89, 95, 115, 365, 437, 445, 1387, 1481, 1679, 1691, 2047, 2185, 6497, 6935, 7405, 8395, 8455, 10235, 28139, 31901, 32485, 34063, 38893, 108113, 123443, 131809, 140695, 149431, 159505, 170315, 194465, 540565, 617215, 647197, 659045, 747155, 2054147, 2486599, 2504371, 2839189, 3031607, 3235985, 9622057, 10270735, 12432995, 12521855, 14195945, 15158035, 47245381, 48110285, 57600533, 182819083, 221307311, 236226905, 288002665, 914095415, 1106536555, 4204838909, 21024194545]

約数ペア:

[(1, 21024194545), (5, 4204838909), (19, 1106536555), (23, 914095415), (73, 288002665), (89, 236226905), (95, 221307311), (115, 182819083), (365, 57600533), (437, 48110285), (445, 47245381), (1387, 15158035), (1481, 14195945), (1679, 12521855), (1691, 12432995), (2047, 10270735), (2185, 9622057), (6497, 3235985), (6935, 3031607), (7405, 2839189), (8395, 2504371), (8455, 2486599), (10235, 2054147), (28139, 747155), (31901, 659045), (32485, 647197), (34063, 617215), (38893, 540565), (108113, 194465), (123443, 170315), (131809, 159505), (140695, 149431)]