20923422

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26976738

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 107, 109, 138, 214, 218, 299, 321, 327, 598, 642, 654, 897, 1391, 1417, 1794, 2461, 2507, 2782, 2834, 4173, 4251, 4922, 5014, 7383, 7521, 8346, 8502, 11663, 14766, 15042, 23326, 31993, 32591, 34989, 63986, 65182, 69978, 95979, 97773, 151619, 191958, 195546, 268249, 303238, 454857, 536498, 804747, 909714, 1609494, 3487237, 6974474, 10461711, 20923422]

約数ペア:

[(1, 20923422), (2, 10461711), (3, 6974474), (6, 3487237), (13, 1609494), (23, 909714), (26, 804747), (39, 536498), (46, 454857), (69, 303238), (78, 268249), (107, 195546), (109, 191958), (138, 151619), (214, 97773), (218, 95979), (299, 69978), (321, 65182), (327, 63986), (598, 34989), (642, 32591), (654, 31993), (897, 23326), (1391, 15042), (1417, 14766), (1794, 11663), (2461, 8502), (2507, 8346), (2782, 7521), (2834, 7383), (4173, 5014), (4251, 4922)]