21835970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 45239040

約数和(自身を除く): 23403070

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 67, 109, 115, 130, 134, 218, 230, 299, 335, 545, 598, 670, 871, 1090, 1417, 1495, 1541, 1742, 2507, 2834, 2990, 3082, 4355, 5014, 7085, 7303, 7705, 8710, 12535, 14170, 14606, 15410, 20033, 25070, 32591, 36515, 40066, 65182, 73030, 94939, 100165, 162955, 167969, 189878, 200330, 325910, 335938, 474695, 839845, 949390, 1679690, 2183597, 4367194, 10917985, 21835970]

約数ペア:

[(1, 21835970), (2, 10917985), (5, 4367194), (10, 2183597), (13, 1679690), (23, 949390), (26, 839845), (46, 474695), (65, 335938), (67, 325910), (109, 200330), (115, 189878), (130, 167969), (134, 162955), (218, 100165), (230, 94939), (299, 73030), (335, 65182), (545, 40066), (598, 36515), (670, 32591), (871, 25070), (1090, 20033), (1417, 15410), (1495, 14606), (1541, 14170), (1742, 12535), (2507, 8710), (2834, 7705), (2990, 7303), (3082, 7085), (4355, 5014)]