19713668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 39626496

約数和(自身を除く): 19912828

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 53, 92, 106, 212, 299, 311, 598, 622, 689, 1196, 1219, 1244, 1378, 2438, 2756, 4043, 4876, 7153, 8086, 14306, 15847, 16172, 16483, 28612, 31694, 32966, 63388, 65932, 92989, 185978, 214279, 371956, 379109, 428558, 758218, 857116, 1516436, 4928417, 9856834, 19713668]

約数ペア:

[(1, 19713668), (2, 9856834), (4, 4928417), (13, 1516436), (23, 857116), (26, 758218), (46, 428558), (52, 379109), (53, 371956), (92, 214279), (106, 185978), (212, 92989), (299, 65932), (311, 63388), (598, 32966), (622, 31694), (689, 28612), (1196, 16483), (1219, 16172), (1244, 15847), (1378, 14306), (2438, 8086), (2756, 7153), (4043, 4876)]