21753712

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:481

約数の個数: 40

約数和(自身を含む): 44015040

約数和(自身を除く): 22261328

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 173, 232, 271, 346, 464, 542, 692, 1084, 1384, 2168, 2768, 4336, 5017, 7859, 10034, 15718, 20068, 31436, 40136, 46883, 62872, 80272, 93766, 125744, 187532, 375064, 750128, 1359607, 2719214, 5438428, 10876856, 21753712]

約数ペア:

[(1, 21753712), (2, 10876856), (4, 5438428), (8, 2719214), (16, 1359607), (29, 750128), (58, 375064), (116, 187532), (173, 125744), (232, 93766), (271, 80272), (346, 62872), (464, 46883), (542, 40136), (692, 31436), (1084, 20068), (1384, 15718), (2168, 10034), (2768, 7859), (4336, 5017)]