21471344

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{593}}^1$

素因数の和:705

約数の個数: 40

約数和(自身を含む): 43604352

約数和(自身を除く): 22133008

約数列:

[1, 2, 4, 8, 16, 31, 62, 73, 124, 146, 248, 292, 496, 584, 593, 1168, 1186, 2263, 2372, 4526, 4744, 9052, 9488, 18104, 18383, 36208, 36766, 43289, 73532, 86578, 147064, 173156, 294128, 346312, 692624, 1341959, 2683918, 5367836, 10735672, 21471344]

約数ペア:

[(1, 21471344), (2, 10735672), (4, 5367836), (8, 2683918), (16, 1341959), (31, 692624), (62, 346312), (73, 294128), (124, 173156), (146, 147064), (248, 86578), (292, 73532), (496, 43289), (584, 36766), (593, 36208), (1168, 18383), (1186, 18104), (2263, 9488), (2372, 9052), (4526, 4744)]