19739844

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 51793560

約数和(自身を除く): 32053716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 89, 101, 122, 178, 183, 202, 244, 267, 303, 356, 366, 404, 534, 549, 606, 732, 801, 909, 1068, 1098, 1212, 1602, 1818, 2196, 3204, 3636, 5429, 6161, 8989, 10858, 12322, 16287, 17978, 18483, 21716, 24644, 26967, 32574, 35956, 36966, 48861, 53934, 55449, 65148, 73932, 80901, 97722, 107868, 110898, 161802, 195444, 221796, 323604, 548329, 1096658, 1644987, 2193316, 3289974, 4934961, 6579948, 9869922, 19739844]

約数ペア:

[(1, 19739844), (2, 9869922), (3, 6579948), (4, 4934961), (6, 3289974), (9, 2193316), (12, 1644987), (18, 1096658), (36, 548329), (61, 323604), (89, 221796), (101, 195444), (122, 161802), (178, 110898), (183, 107868), (202, 97722), (244, 80901), (267, 73932), (303, 65148), (356, 55449), (366, 53934), (404, 48861), (534, 36966), (549, 35956), (606, 32574), (732, 26967), (801, 24644), (909, 21716), (1068, 18483), (1098, 17978), (1212, 16287), (1602, 12322), (1818, 10858), (2196, 8989), (3204, 6161), (3636, 5429)]