21031888595

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 27566438400

約数和(自身を除く): 6534549805

約数列:

[1, 5, 19, 67, 89, 95, 137, 271, 335, 445, 685, 1273, 1355, 1691, 2603, 5149, 5963, 6365, 8455, 9179, 12193, 13015, 18157, 24119, 25745, 29815, 37127, 45895, 60965, 90785, 113297, 120595, 174401, 185635, 231667, 344983, 458261, 566485, 705413, 816931, 872005, 1158335, 1615973, 1724915, 2291305, 2487509, 3304303, 3527065, 4084655, 8079865, 12437545, 15521689, 16521515, 30703487, 47262671, 62781757, 77608445, 153517435, 221388301, 236313355, 313908785, 1106941505, 4206377719, 21031888595]

約数ペア:

[(1, 21031888595), (5, 4206377719), (19, 1106941505), (67, 313908785), (89, 236313355), (95, 221388301), (137, 153517435), (271, 77608445), (335, 62781757), (445, 47262671), (685, 30703487), (1273, 16521515), (1355, 15521689), (1691, 12437545), (2603, 8079865), (5149, 4084655), (5963, 3527065), (6365, 3304303), (8455, 2487509), (9179, 2291305), (12193, 1724915), (13015, 1615973), (18157, 1158335), (24119, 872005), (25745, 816931), (29815, 705413), (37127, 566485), (45895, 458261), (60965, 344983), (90785, 231667), (113297, 185635), (120595, 174401)]