19747936

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1283}}^1$

素因数の和:1343

約数の個数: 48

約数和(自身を含む): 43034544

約数和(自身を除く): 23286608

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 74, 104, 148, 208, 296, 416, 481, 592, 962, 1184, 1283, 1924, 2566, 3848, 5132, 7696, 10264, 15392, 16679, 20528, 33358, 41056, 47471, 66716, 94942, 133432, 189884, 266864, 379768, 533728, 617123, 759536, 1234246, 1519072, 2468492, 4936984, 9873968, 19747936]

約数ペア:

[(1, 19747936), (2, 9873968), (4, 4936984), (8, 2468492), (13, 1519072), (16, 1234246), (26, 759536), (32, 617123), (37, 533728), (52, 379768), (74, 266864), (104, 189884), (148, 133432), (208, 94942), (296, 66716), (416, 47471), (481, 41056), (592, 33358), (962, 20528), (1184, 16679), (1283, 15392), (1924, 10264), (2566, 7696), (3848, 5132)]