19726356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 50912064

約数和(自身を除く): 31185708

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 137, 142, 156, 169, 213, 274, 284, 338, 411, 426, 507, 548, 676, 822, 852, 923, 1014, 1644, 1781, 1846, 2028, 2769, 3562, 3692, 5343, 5538, 7124, 9727, 10686, 11076, 11999, 19454, 21372, 23153, 23998, 29181, 35997, 38908, 46306, 47996, 58362, 69459, 71994, 92612, 116724, 126451, 138918, 143988, 252902, 277836, 379353, 505804, 758706, 1517412, 1643863, 3287726, 4931589, 6575452, 9863178, 19726356]

約数ペア:

[(1, 19726356), (2, 9863178), (3, 6575452), (4, 4931589), (6, 3287726), (12, 1643863), (13, 1517412), (26, 758706), (39, 505804), (52, 379353), (71, 277836), (78, 252902), (137, 143988), (142, 138918), (156, 126451), (169, 116724), (213, 92612), (274, 71994), (284, 69459), (338, 58362), (411, 47996), (426, 46306), (507, 38908), (548, 35997), (676, 29181), (822, 23998), (852, 23153), (923, 21372), (1014, 19454), (1644, 11999), (1781, 11076), (1846, 10686), (2028, 9727), (2769, 7124), (3562, 5538), (3692, 5343)]