19915194

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:711

約数の個数: 64

約数和(自身を含む): 47464704

約数和(自身を除く): 27549510

約数列:

[1, 2, 3, 6, 13, 17, 23, 26, 34, 39, 46, 51, 69, 78, 102, 138, 221, 299, 391, 442, 598, 653, 663, 782, 897, 1173, 1306, 1326, 1794, 1959, 2346, 3918, 5083, 8489, 10166, 11101, 15019, 15249, 16978, 22202, 25467, 30038, 30498, 33303, 45057, 50934, 66606, 90114, 144313, 195247, 255323, 288626, 390494, 432939, 510646, 585741, 765969, 865878, 1171482, 1531938, 3319199, 6638398, 9957597, 19915194]

約数ペア:

[(1, 19915194), (2, 9957597), (3, 6638398), (6, 3319199), (13, 1531938), (17, 1171482), (23, 865878), (26, 765969), (34, 585741), (39, 510646), (46, 432939), (51, 390494), (69, 288626), (78, 255323), (102, 195247), (138, 144313), (221, 90114), (299, 66606), (391, 50934), (442, 45057), (598, 33303), (653, 30498), (663, 30038), (782, 25467), (897, 22202), (1173, 16978), (1306, 15249), (1326, 15019), (1794, 11101), (1959, 10166), (2346, 8489), (3918, 5083)]