21392300

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 49496832

約数和(自身を除く): 28104532

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 71, 92, 100, 115, 131, 142, 230, 262, 284, 355, 460, 524, 575, 655, 710, 1150, 1310, 1420, 1633, 1775, 2300, 2620, 3013, 3266, 3275, 3550, 6026, 6532, 6550, 7100, 8165, 9301, 12052, 13100, 15065, 16330, 18602, 30130, 32660, 37204, 40825, 46505, 60260, 75325, 81650, 93010, 150650, 163300, 186020, 213923, 232525, 301300, 427846, 465050, 855692, 930100, 1069615, 2139230, 4278460, 5348075, 10696150, 21392300]

約数ペア:

[(1, 21392300), (2, 10696150), (4, 5348075), (5, 4278460), (10, 2139230), (20, 1069615), (23, 930100), (25, 855692), (46, 465050), (50, 427846), (71, 301300), (92, 232525), (100, 213923), (115, 186020), (131, 163300), (142, 150650), (230, 93010), (262, 81650), (284, 75325), (355, 60260), (460, 46505), (524, 40825), (575, 37204), (655, 32660), (710, 30130), (1150, 18602), (1310, 16330), (1420, 15065), (1633, 13100), (1775, 12052), (2300, 9301), (2620, 8165), (3013, 7100), (3266, 6550), (3275, 6532), (3550, 6026)]