18954468

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 52239096

約数和(自身を除く): 33284628

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 101, 117, 156, 202, 234, 303, 401, 404, 468, 606, 802, 909, 1203, 1212, 1313, 1604, 1818, 2406, 2626, 3609, 3636, 3939, 4812, 5213, 5252, 7218, 7878, 10426, 11817, 14436, 15639, 15756, 20852, 23634, 31278, 40501, 46917, 47268, 62556, 81002, 93834, 121503, 162004, 187668, 243006, 364509, 486012, 526513, 729018, 1053026, 1458036, 1579539, 2106052, 3159078, 4738617, 6318156, 9477234, 18954468]

約数ペア:

[(1, 18954468), (2, 9477234), (3, 6318156), (4, 4738617), (6, 3159078), (9, 2106052), (12, 1579539), (13, 1458036), (18, 1053026), (26, 729018), (36, 526513), (39, 486012), (52, 364509), (78, 243006), (101, 187668), (117, 162004), (156, 121503), (202, 93834), (234, 81002), (303, 62556), (401, 47268), (404, 46917), (468, 40501), (606, 31278), (802, 23634), (909, 20852), (1203, 15756), (1212, 15639), (1313, 14436), (1604, 11817), (1818, 10426), (2406, 7878), (2626, 7218), (3609, 5252), (3636, 5213), (3939, 4812)]