19864452

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 47944512

約数和(自身を除く): 28080060

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 137, 172, 258, 274, 281, 411, 516, 548, 562, 822, 843, 1124, 1644, 1686, 3372, 5891, 11782, 12083, 17673, 23564, 24166, 35346, 36249, 38497, 48332, 70692, 72498, 76994, 115491, 144996, 153988, 230982, 461964, 1655371, 3310742, 4966113, 6621484, 9932226, 19864452]

約数ペア:

[(1, 19864452), (2, 9932226), (3, 6621484), (4, 4966113), (6, 3310742), (12, 1655371), (43, 461964), (86, 230982), (129, 153988), (137, 144996), (172, 115491), (258, 76994), (274, 72498), (281, 70692), (411, 48332), (516, 38497), (548, 36249), (562, 35346), (822, 24166), (843, 23564), (1124, 17673), (1644, 12083), (1686, 11782), (3372, 5891)]