21623900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{599}}^1$

素因数の和:651

約数の個数: 54

約数和(自身を含む): 49606200

約数和(自身を除く): 27982300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 361, 380, 475, 599, 722, 950, 1198, 1444, 1805, 1900, 2396, 2995, 3610, 5990, 7220, 9025, 11381, 11980, 14975, 18050, 22762, 29950, 36100, 45524, 56905, 59900, 113810, 216239, 227620, 284525, 432478, 569050, 864956, 1081195, 1138100, 2162390, 4324780, 5405975, 10811950, 21623900]

約数ペア:

[(1, 21623900), (2, 10811950), (4, 5405975), (5, 4324780), (10, 2162390), (19, 1138100), (20, 1081195), (25, 864956), (38, 569050), (50, 432478), (76, 284525), (95, 227620), (100, 216239), (190, 113810), (361, 59900), (380, 56905), (475, 45524), (599, 36100), (722, 29950), (950, 22762), (1198, 18050), (1444, 14975), (1805, 11980), (1900, 11381), (2396, 9025), (2995, 7220), (3610, 5990)]