21480390

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1153}}^1$

素因数の和:1195

約数の個数: 80

約数和(自身を含む): 60321888

約数和(自身を除く): 38841498

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 81, 90, 115, 135, 138, 162, 207, 230, 270, 345, 405, 414, 621, 690, 810, 1035, 1153, 1242, 1863, 2070, 2306, 3105, 3459, 3726, 5765, 6210, 6918, 9315, 10377, 11530, 17295, 18630, 20754, 26519, 31131, 34590, 51885, 53038, 62262, 79557, 93393, 103770, 132595, 155655, 159114, 186786, 238671, 265190, 311310, 397785, 466965, 477342, 716013, 795570, 933930, 1193355, 1432026, 2148039, 2386710, 3580065, 4296078, 7160130, 10740195, 21480390]

約数ペア:

[(1, 21480390), (2, 10740195), (3, 7160130), (5, 4296078), (6, 3580065), (9, 2386710), (10, 2148039), (15, 1432026), (18, 1193355), (23, 933930), (27, 795570), (30, 716013), (45, 477342), (46, 466965), (54, 397785), (69, 311310), (81, 265190), (90, 238671), (115, 186786), (135, 159114), (138, 155655), (162, 132595), (207, 103770), (230, 93393), (270, 79557), (345, 62262), (405, 53038), (414, 51885), (621, 34590), (690, 31131), (810, 26519), (1035, 20754), (1153, 18630), (1242, 17295), (1863, 11530), (2070, 10377), (2306, 9315), (3105, 6918), (3459, 6210), (3726, 5765)]