21433120

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1381}}^1$

素因数の和:1493

約数の個数: 48

約数和(自身を含む): 51194808

約数和(自身を除く): 29761688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1381, 1552, 1940, 2762, 3104, 3880, 5524, 6905, 7760, 11048, 13810, 15520, 22096, 27620, 44192, 55240, 110480, 133957, 220960, 267914, 535828, 669785, 1071656, 1339570, 2143312, 2679140, 4286624, 5358280, 10716560, 21433120]

約数ペア:

[(1, 21433120), (2, 10716560), (4, 5358280), (5, 4286624), (8, 2679140), (10, 2143312), (16, 1339570), (20, 1071656), (32, 669785), (40, 535828), (80, 267914), (97, 220960), (160, 133957), (194, 110480), (388, 55240), (485, 44192), (776, 27620), (970, 22096), (1381, 15520), (1552, 13810), (1940, 11048), (2762, 7760), (3104, 6905), (3880, 5524)]